The Family number is an 8-bit number derived from the processor signature by adding the Extended Family number (bits 27:20) and the Family number (bits 11:8). EPT Intel Extended Page Table FLEXPRIORITY Intel FlexPriority TPR_SHADOW Intel TPR Shadow VMMCALL Prefer vmmcall to vmcall VNMI Intel Virtual NMI VPID Intel Virtual Processor ID XENPV Xen paravirtual guest Intel-defined CPU features. Note: In the first days of the CPUID instruction, it was only Intel CPUs that supported it. It was introduced by Intel in 1993 with the launch of the Pentium and SL-enhanced 486 processors. E5xxx, E6xxx, E6xxxK 0000013135 00000 n Xeon® E3, i3-31xx/32xx-T/U i5-23xx/24xx/25xx-T/S/M/K 0000007316 00000 n Real time measurement of each core's internal frequency, memory frequency. By signing in, you agree to our Terms of Service. Core⢠i3 Next -- if it is a Cyrix or a NexGen processor -- the CPUID instruction … 0000011758 00000 n While the general Instruction Set Architecture (ISA) and feature set within a given architecture are identical, certain model specific variations occur, and are generally enumerated through CPUID interrogation[1]. 0000003050 00000 n CPUID instruction. Next -- if it is a Cyrix or a NexGen processor -- the CPUID instruction may have to be enabled. ; x86info command – Show x86 CPU diagnostics. CPUID level 0x00000007:0 (ebx), word 9 Real time measurement of each core's internal frequency, memory frequency. Core⢠i7 Extreme The Intel® Processor Identification Utility reports the CPUID information for the tested processor, located under the CPUID DATA tab of the tool. E1600, Core⢠2 Duo M X34xx, Core⢠i7 Extreme Serializing instruction execution guarantees that any modifications to flags, registers, and memory for previous instructions are completed before the next instruction is fetched and executed (see "Serializing Instructions" in Chapter 7 of the Intel Architecture Software Developer's Manual, Volume 3). NOTE See AP-485, Intel Processor Identification and the CPUID Instruction (Order Number 241618) and Chapter 14 in the IA-32 Intel Architecture Software Developer's Manual, Volume 1, for information on identifying earlier IA-32 processors. 0000010158 00000 n 0000002538 00000 n Overview. The package gathers all information during package initialization phase so its public interface will not need to execute the CPUID instruction at runtime. ; cpuid command – Dump CPUID information for each CPU. Click or the topic for details: Application notes. The CPUID opcode is a processor supplementary instruction (its name derived from CPU IDentification) for the x86 architecture. E7xxx, E8xxx If a software procedure can set and clear this flag, the processor executing the procedure supports the CPUID instruction. See “Time Stamp Counter” in Chapter 17 of the Intel® 64 and IA-32 Architectures Software Developer’s Manual, Volume 3B, for specific details of the time stamp counter behavior. Mainboard and chipset. Sample code to extract cpu information using CPUID instruction - cpuinfo.cpp. CPUID Instruction Viewer is a small utility designed to help developers view technical information returned by the CPUID instruction from the x86 and x86-64 instruction sets. (�Y l�^'��r� ��0�:(�����9�. The Intel® 64 and IA-32 Architectures Software Developer's Manual consists of eight volumes: Basic Architecture, Instruction Set Reference A-M, Instruction Set Reference N-Z, Instruction Set Reference, System Programming Guide Part 1, System Programming Guide Part 2, System Programming Guide Part 3, and System Programming Guide Part 4. Xeon® 3000, Core⢠i5 Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels. 0000000016 00000 n cpuid Intel CPUID library for Go Programming Language. The -EP suffix denotes a Dual Processor, meaning this processor is designed to operate in a Dual Processor platform (but can still operate in a Single Processor platform). Currently x86 / x64 (AMD64/i386) and ARM (ARM64) is supported, and no external C (cgo) code is used, which should make the library very easy to use. (Please notify the author of any such discrepancy). CPUID Instruction Viewer is a small utility designed to help developers view technical information returned by the CPUID instruction from the x86 and x86-64 instruction sets. Before trying to rely upon CPUID, a program must properly detect and sometimes enable the instruction. or E3-12xx, Celeron⢠Mobile x86info is a program which displays a range of information about the CPUs present in an x86 … D��-q���9$8�r�R=z���NR� ��Z����@Eݛ�%k99�n�F7|n���#RK/��(�b�KǍg�m�vd�v�upo�����/���ܢ��߫Δ�;-&�� ���@)9�"d�+YV����Y�d��0�ubG����m�v1�GB@]���`�;�����?� It … 0000012260 00000 n It is said that CPUID is "incorrectly indicating the presence of BMI1 or BMI2 instruction set extensions" and that "Attempting to use instructions from the BMI1 or BMI2 instruction set extensions will result in a #UD exception." The time stamp disable (TSD) flag in register CR4 restricts the use of the RDTSCP instruction as follows. The -EX suffix denotes a Multi-Processor (MP), meaning this processor is designed to operate in a Multiprocessor platform, but can still operate in a Single or Dual processor platform configuration. This application note explains how to use the CPUID instruction in software applications, BIOS implementations, and … 0000012546 00000 n Some applications made the mistake of checking CPUID and then looking for the "GenuineIntel" string. Intel implements POPCNT beginning with the Nehalem microarchitecture and AMD with the Barcelona microarchitecture. When working on an test machine running Windows Server on a cloud we run a Windows application. There are 2: both Xeon 14 core 2.6 GHz. N5xx, D5xx (dual core). lscpu command – Show information on CPU architecture. Historically, Intel processors from the Pentium Pro onwards have a maximum CPUID input value of only 02h or 03h. 0000014202 00000 n RDSEED availability can be checked on Intel … L34xx, Core⢠i7 The evolution of processor identification was necessary because, as the Intel Architecture proliferates, the 0000010603 00000 n The CPUID Instruction . For systems that don't support CPUID, changing the 'ID' bit will have no effect. Modified Table 1 to include the information returned by the extended CPUID functions. Correction: lfence is serializing on the instruction stream, without flushing the store buffer.It's sufficient for lfence; rdtsc.It's not "a serializing instruction" in the full technical sense like cpuid or iret.And mfence is serializing on AMD according to documentation, and in practice also on some Intel CPUs like Skylake, possibly a … 0000002756 00000 n See section 5.1.2.2 of the, The Model number is an 8 bit number derived from the processor signature by shifting the Extended Model number (bits 19:16) 4 bits to the left and adding the Model number (bits 7:4, "Intel® Processor Identification and the CPUID Instruction", official Intel product information source, "Intel Processor Identification and the CPUID Instruction", official Intel® product information source, http://www.intel.com/products/processor_number. – … X7xxx, Celeron⢠Desktop CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Please consult Section 2: Usage Guidelines of the "Intel® Processor Identification and the CPUID Instruction" for the proper use of CPUID. Electronic versions of these documents allow you to quickly get to the information you need and print only the pages you want. Note that there are about 5 CPUID leaves where the cache size information can be specified. i5-6xx, i5-6xxK ... Instruction TLB: 4-KByte pages, 8-way set associative, 64 entries L2 TLB: 1-MB, 4-way set associative, 64-byte line size N2000 series: N26xx, N28xx Core⢠2 Extreme 0000011449 00000 n 0000010713 00000 n Description. This determines the kind of basic information CPUID can provide the operating system. i3-3xxE, i3-3xxM, i3-3xxUM 0000011901 00000 n The brand index was added to the CPUID instruction with the Pentium III Xeon processor and will be included on future IA-32 processors, including the Pentium 4 processors. History; Calling CPUID; EAX=0: Highest Function … The evolution of processor identification was necessary because, as the Intel Architecture proliferates, the computing market … Such results are intended to be viewed along with the accompanying Intel … 0000013504 00000 n The cpuid package provides convenient and fast access to information from the x86 CPUID instruction. So, I created a little PowerShell script to get basic CPU information, including the CPUID signature and the system's current microcode revision. 0000004999 00000 n x86info. Currently x86 / x64 (AMD64) is supported, and no external C (cgo) code is used, which should make the library very easy to use. The CPUID field is a combination of the processor family, processor model, and processor stepping reported in a hexadecimal format. x86info. Celeron⢠Mobile. Core⢠i3 xref 0000014790 00000 n The Brand string is a new extension to the CPUID instruction implemented in some Intel IA-32 processors, including the Pentium 4 processor. Core⢠2 Duo D2000 Series: D25xx (no HT), D27xx, N4xx, D4xx (single core) The value shown represents which Intel’s instruction set this processor is compatible with. This was developed in the early 1990s for what was then Intel’s new Pentium processor but it also exists in some models of Intel’s 80486 processor and … Forgot your Intel This is the closet tool to CPU-Z app on Linux. 0000005628 00000 n CPUID instruction. In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from CPU IDentification) allowing software to discover details of the processor. 0000014920 00000 n With this feature, the CPUID instruction returns the ASCII brand identification string and the maximum operating frequency of the processor to the EAX, EBX, ECX, and EDX registers. The only exception is the Intel Pentium 4 with Hyper-Threading Technology (HTT) . Donât have an Intel account? This table includes the Atom⢠processors on 45nm and later process technology. L52xx, E31xx, Xeon® 3000 G4xx, G5xx If software can change the value of this flag, the CPUID instruction is … It was introduced by Intel in 1993 when it introduced the Pentium and SL-enhanced 486 processors. I use BMI instructions in some highly optimized part of my software so I wonder what the BIOS … 0000011208 00000 n Older operating systems like Windows 95/98 and Windows Me were released before the Intel Pentium 4 with HTT, and are therefore … In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from CPU IDentification) allowing software to discover details of the processor. Note:Implementing this routi… It uses WMI (Windows Management Information)'s Processor class to query how many processors there are. Please contact system vendor for more information on specific products or systems. History; Calling CPUID… i7-8xx, i7-8xxS, i7-8xxK For more information about the specific parameters to use and the values returned by these intrinsics on Intel processors, see the documentation for the cpuid instruction in Intel 64 and IA-32 Architectures Software Developers Manual Volume 2: Instruction Set Reference and Intel Architecture Instruction Set Extensions … Celeron⢠Mobile cpuid Intel CPUID library for Go Programming Language. But the CPU IDs are equal: F106 0400 FFFB EBBF. 0000013961 00000 n The Model number is an 8 bit number derived from the processor signature by shifting the Extended Model number (bits 19:16) 4 bits to the left and adding the Model number (bits 7:4 ) . [1] Contents. 06/01-019 Changed to use registered trademark for Intel® Celeron® throughout entire document. i7-2xxx-S/K/M/QM/LE/UE/QE Package cpuid provides information about the CPU running the current program. The CPU-Z… Xeon® 3000, Q9xxx, Q8xxx, !9xxxS The Intel® Processor Identification Utility is free software that can identify the specifications of your processor. Core⢠i5 [1] Contents. Celeron⢠Desktop, 30xx Intel may make changes to manufacturing life cycle, specifications, and product descriptions at any time, without notice. The CPUID instruction returns results about the capabilities and features supported by the processor that this utility is running on. The CPUID instruction can be used to check whether the central processing unit (CPU) supports the RDRAND instruction on both AMD and Intel CPUs. The Intel486 family and subsequent Intel processors provide a straightforward method for determining whether the processor's internal architecture is able to execute the CPUID instruction. Memory type, size, timings, and module specifications (SPD). See http://www.intel.com/products/processor_number for details. Core⢠i5 Modified Table 1 to include the information returned by the extended CPUID functions. ; x86info command – Show x86 CPU diagnostics. E43xx,E6xxx In particular, the program must detect the presence of a 32-bit x86 processor, which supports the EFLAGS register. 0000013270 00000 n This application note explains how to use the CPUID instruction in software applications, BIOS implementations, and various processor tools. Core⢠2 Extreme Memory type, size, timings, and module specifications (SPD). 0000006678 00000 n <<916123E576A1A44F874BD042981AB36E>]>> 6623 0 obj <> endobj 06/01-019 Changed to use registered trademark for Intel® Celeron® throughout entire document. 0 0000012820 00000 n Description. Core⢠i7, P4xxx, U3xxx This instruction operates the same in non-64-bit modes and 64-bit mode. The Intel® 64 and IA-32 architectures software developer's manuals are now available for download via one combined volume, a four volume set or a ten volume set. %%EOF AMD processors are checked for the feature using the same test. %PDF-1.6 %���� 0000014509 00000 n E3-12xxV2, Core⢠i3 The brand string feature is an extension to the CPUID instruction introduced in the Pentium 4 processors. 0000012401 00000 n Serializing instruction execution guarantees that any modifications to flags, registers, and memory for previous instructions are completed before the next instruction is fetched and executed (see "Serializing Instructions" in Chapter 7 of the Intel … This intrinsic stores the supported features and CPU information returned by the cpuid instruction in cpuInfo, an array of four 32-bit integers that's filled with the values of the EAX, EBX, ECX, and EDX registers (in that order). This bit is modifiable only when the CPUID instruction is supported. Core⢠2 Quad The CPUID instruction can be executed at any privilege level to serialize instruction execution. 0000003166 00000 n The CPUID instruction can be used to check whether the central processing unit (CPU) supports the RDRAND instruction on both AMD and Intel CPUs. It was introduced by Intel in 1993 when it introduced the Pentium and SL-enhanced 486 processors. cpuid instruction can be used in intel processor to get cpu specific information. Reached 3392 MHz with a Intel Core i3 3240 MB: Gigabyte H61M-DS2 4.0 - RAM: 8192MB GEIL Anonymous December 15th, 2020 Reached 3691 MHz with a Intel Core i7 8700K MB: Asus PRIME B360-PLUS - RAM: 32768MB Corsair 0000014368 00000 n How to Benchmark Code Execution Times ®on Intel IA-32 and IA-64 Instruction Set Architectures 10 natural choice to avoid out of order execution would be to call CPUID just before both RTDSC calls; this method works but there is a lot of variance (in terms of clock cycles) that is intrinsically associated with the CPUID instruction execution Core⢠i5 0000013383 00000 n 0000013655 00000 n T3200 I tried to compile a module (based on Intel's published example) in MASM that could be accessed by CVF, but without success. 0000014654 00000 n X6800 6623 57 Order Number: 241618-039 Intel® Processor Identification and the CPUID Instruction Application Note 485 May 2012 Processor numbers differentiate features within each processor family, not across different processor families. Because such software would have problems with all non-Intel CPUID enabled CPUs, some CPUs have the capability to change … Xeon® 5000/3000, E3xxx 350, G6xx, G6xxT, G8xx Pentium⢠; cpuid command – Dump CPUID information for each CPU. You will be notified when there … The amount of errors in the Intel Document 2A is horrific. Sign up here Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Please read and understand these important disclaimers prior to use. Core⢠i3 Intel® processor numbers are not a measure of performance. Order Number: 241618-039 Intel® Processor Identification and the CPUID Instruction Application Note 485 May 2012 The maximum CPUID input value determines the values that the operating syst… This is the closet tool to CPU-Z app on Linux. �o�h��* �qL � Has anybody gotten the Intel CPUID instruction (assembly language only as far as I know) to work with CVF? This table includes the mainline processors on 90nm and later process technology. Using the brand string feature, future IA-32 architecture based processors will return their ASCII brand identification string and maximum operating frequency via an extended CPUID instruction. i7-29xxXM CPUID for Intel Core i7-6700HQ. 0000010959 00000 n Idle States. 0000009987 00000 n By taking advantage of the CPUID instruction, software developers 0000014081 00000 n The CPUID instruction can be executed at any privilege level to serialize instruction execution. The cpuid package provides convenient and fast access to information from the x86 CPUID instruction. All gists Back to GitHub ... // This seems to be working for both Intel & AMD vendors: for (int i= 0x80000002; i< 0x80000005; ++i) {CPUID cpuID (i, 0); … trailer i7-3920XM For identifying a particular processor, please use the Intel® Processor Identification Utility for Microsoft Windows* operating systems or the bootable version for other operating systems[2]. Last Updated:06/15/2012. CPUID instruction not only provides the processor signature, but also provides information about the features supported by and implemented on the Intel processor. username 0000011052 00000 n 9xx, B9xx Pentium⢠Mobile 0000013812 00000 n Core⢠i7 0000010255 00000 n The browser version you are using is not recommended for this site.Please consider upgrading to the latest version of your browser by clicking one of the following links. The "tick tock" model adds predictability to the Intel® architecture roadmap. 8xx, B8xx Core⢠i7 Core⢠i5 Core⢠i7 The first step is to query the processor to find out the highest input value CPUID recognises, by executing CPUID with the EAX register set to 0. Pentium⢠Description. To facilitate brand identification of IA-32 processors with the CPUID instruction, two features are provided: brand index and brand string. If supported, bit 30 of the ECX register is set after calling CPUID standard function 01H. 0000002893 00000 n Core⢠2 Extreme, Xeon® 3000 Core⢠2 Duo Package cpuid provides information about the CPU running the current program. Modified Table 5-1 to include new Brand ID values supported by the Intel® processors with Intel NetBurst® microarchitecture. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice. 0000006222 00000 n Modified Table 5-1 to include new Brand ID values supported by the Intel® processors with Intel NetBurst® microarchitecture. P6xxx, U5xxx �RsȨi� )ҭqk վx���Y�b��{Y%����T᪪�(��K�Z���*I���D���G���[�W���M���]�����$o����E�/P%b�6��}�S����K�~e�����Zq�RS&�v���I>�ZL˩�:��Kg�)��}��`��b��5��O9��.��x�mKͳ�ɩrQ�����#}��\�5�����s����� �|�E�ЎmD!Y�S�:Z{�j���K�\�����0Xm��+���s��e�~����/0���Z5�m��{@"��� ��O��X��l� 9�-ڨ����h�]W�Jť�h��N���K���*) (q���3A�0i{_�̎�sq�^���X �K���9N��l���-Ѯ~�&�wb��:B�J���O&ٔkO.��! Pentium⢠Mobile 0000002720 00000 n Core⢠2 Extreme M, L7xxx,T5xxx,T7xxx,U7xxx The package gathers all information during package initialization phase so its public interface will not need to execute the CPUID instruction at runtime. According to Wikipedia, instruction POPCNT, population count (count number of bits set to 1), support is indicated via the CPUID.01H;ECX.POPCNT[Bit 23] flag. for a basic account. L33xx, X3350, Celeron⢠Desktop CPUID instruction not only provides the processor signature, but also provides information about the features supported by and implemented on the Intel processor. 0000001474 00000 n Overview. Core⢠i7 Extreme In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from CPU IDentification) allowing software to discover details of the processor. If I had not read the previous articles I listed this one would have confused me so much.EDIT: Still looking for the AMD CPUID specification document, if anyone knows where I can get this it would be most appreciated. It displays the Graphics information, Chipset information, Technologies supported by the processor, and more. cpuid Intel CPUID library for Go Programming Language. Xeon® 3000, Core⢠2 Quad This article is intended to aid software developers in understanding the "big picture" of Intel's recent architecture and processor releases. 0000011613 00000 n However within each "tick" and "tock" architecture, multiple processors are launched to support the many diverse computing needs of consumers. C0 is the operational state, meaning that the CPU is doing useful work. 0000012128 00000 n lscpu command – Show information on CPU architecture. cpuid Intel CPUID library for Go Programming Language. i7-3xxx-S/K/M/QM/LE/UE/QE 0000010480 00000 n CPU features are detected on startup, and kept for fast access through the life of the application. Information contained are specific to the Intel® Xeon® Processor 5000 Sequence. CPU features are detected on startup, and kept for fast access through the life of the application. Try these quick links to visit popular site sections. All CPUIDs » Intel Core i7 Mobile family » Model i7-6700HQ » PN# CL8066202194635 » Posted by [anonymous] Jump to. The ID flag (bit 21) in the EFLAGS register indicates support for the CPUID instruction. The information in the table below is composed from the "Intel® Processor Identification and the CPUID Instruction" and the official Intel product information source. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. password? The cpuid package provides convenient and fast access to information from the x86 CPUID instruction. If a software procedure can set and clear this flag, the processor executing the procedure supports the CPUID instruction. intel® AP-485 APPLICATION NOTE Intel Processor Identification and the CPUID Instruction December 1996 I Order Number: 241618-005 This instruction oper-ates the same in non-64-bit modes and 64-bit mode. The CPUID signature and microcode revision cannot be easily found by the average user. The CPUID instruction not only provides the processor signature, but also provides information about the features supported by and implemented on the Intel processor. Intel® Processor Identification and the CPUID Instruction Application Note 486 February 2004 Document Number: 241618-025 R 0000012044 00000 n 0000003243 00000 n Xeon® 3000, G69xx Skip to content. Celeron⢠Desktop Prior to using the CPUID instruction, you should also make sure the processor supports it by testing the 'ID' bit (0x200000) in eflags. I use BMI instructions in some highly optimized part of my software so I wonder what the BIOS workaround is doing: The package gathers all information during package initialization phase so its public interface will not need to execute the CPUID instruction … Pentium⢠Desktop This bit is modifiable only when the CPUID instruction is supported. All information provided is subject to change at any time, without notice. AP-485 Intel® Processor Identification and the CPUID Instruction. Information in this article is intended as a convenient summary of the contents of the "Intel® Processor Identification and the CPUID Instruction" application note and the official Intel® product information source. The evolution of processor identification was necessary because, as the Intel Architecture proliferates, the i7-6xxE/LE/UE/M/LM/UM, Pentium⢠Desktop 0000010368 00000 n RDSEED availability can be checked on Intel CPUs in a similar manner. x86info is a program which displays a range of information about the CPUs present in an x86 system. If supported, bit 30 of the ECX register is set after calling CPUID standard function 01H. File name: manual_id297628.pdf Downloads today: 456 Total downloads: 6628 File rating: 8.37 of 10 File size: ~1 MB Note that the CPU stepping reported in the … 0000003088 00000 n When the computer is booted up, the operating system executes the CPUID instruction to identify the processor and its capabilities. In case of discrepancy, the information in the original application note and product information source supersede the contents of this article. The primary means of identifying a modern x86 or x64 processor is the cpuid instruction. E21xx In particular, the program must detect the presence of a 32-bit x86 processor, which supports the EFLAGS register. 0000012994 00000 n Published:06/15/2012 For systems that don't support CPUID, changing the 'ID' bit will have no effect. It is said that CPUID is "incorrectly indicating the presence of BMI1 or BMI2 instruction set extensions" and that "Attempting to use instructions from the BMI1 or BMI2 instruction set extensions will result in a #UD exception." Sample code to extract cpu information using CPUID instruction - cpuinfo.cpp. The information returned has a different meaning depending on the value passed as the function_id parameter. Before trying to rely upon CPUID, a program must properly detect and sometimes enable the instruction. [2] In Linux*-based operating systems you can type âcat /proc/cpuinfo' to obtain the processor family and model numbers (note they are formatted in decimal, while the tables in this article containhexadecimal formatting of these numbers). QX9xxx Mainboard and chipset. download cpuid instruction intel. 0000010869 00000 n Xeon® 3000, i5-7xx, i5-7xxS i5-4xxM/UM, i5-5xxE/M/UM 6679 0 obj<>stream Pentium⢠Mobile [1] For an example of interrogating CPUID to verify features please read Using CPUID to Detect the presence of SSE 4.1 and SSE 4.2 Instruction Sets. Celeron® throughout entire document how many processors there are about 5 CPUID leaves where the cache size information can used... To CPU-Z app on Linux and processor stepping reported in a hexadecimal format 2 Usage. Changes to manufacturing life cycle, specifications, and product information source supersede the contents of this article package convenient! » model i7-6700HQ » PN # CL8066202194635 » Posted by [ anonymous ] Jump.! F106 0400 FFFB EBBF CPU specific information Celeron® throughout entire document tock '' model adds to. Applications to identify the processor executing the procedure supports the intel cpuid instruction register 's processor class to query how processors! Advantage of the application only as far as I know ) to with... The Intel CPUID instruction, software developers Overview supported, bit 30 the!, its system contents of this article is intended to aid software developers Overview also. 0400 FFFB EBBF values supported by and implemented on the Intel document 2A is horrific: Usage Guidelines of CPUID... Is free software that can identify the specifications of your processor specifications ( SPD.... Test machine running Windows Server on a cloud we run a Windows application such results are intended for with! Later process technology intended to aid software developers in understanding the `` GenuineIntel ''.! Not specific to Intel microprocessors assembly language only as far as I intel cpuid instruction ) to work with CVF 0x00000007:0. Intel® processor Identification and the CPUID instruction - cpuinfo.cpp use with Intel microprocessors,! -- if it is a Cyrix or a NexGen processor -- the CPUID instruction, two features provided. I7-6700Hq » PN # CL8066202194635 » Posted by [ anonymous ] Jump to 's processor to. Of performance on a cloud we run a Windows application manufacturing life cycle,,. Access through the life of the RDTSCP instruction as follows from the x86 CPUID instruction returns results about the and... Bra… lscpu command intel cpuid instruction Show information on CPU architecture Show information on CPU architecture instruction note... 21 of the EFLAGS register on CPU architecture a different meaning depending on the Intel processor made the of. Indicates support for the x86 CPUID instruction a similar manner information CPUID can provide the system! Cpu Identification ) for the x86 CPUID instruction returns results about the capabilities and features supported the... Reference Guides for more information regarding the specific instruction sets covered by this notice a meaning! Procedure supports the EFLAGS register anybody gotten the Intel processor this product are intended for use with NetBurst®! Cpuid opcode is a new extension to the CPUID instruction description in Intel to! Barcelona microarchitecture such results are intended to aid software developers in understanding the `` big picture of! Viewed along with the Barcelona microarchitecture CPUID standard function 01H the amount of errors the. Are detected on startup, and more bit will have no effect useful work provides processor! Are used to save power when the CPUID instruction can be specified BIOS,... Reference Guides for more information on CPU architecture information in the Intel Pentium 4 processors ID supported... Popular site sections of information about the features supported by the Intel® Xeon® processor 5000 Sequence microprocessor-dependent optimizations this! New extension to the CPUID instruction in software applications, BIOS implementations, and module (... Quick links to visit popular site sections features supported by the processor executing the procedure supports the register. This application note and product descriptions at any time, without notice the feature the. Instruction ( assembly language only as far as I know ) to work with CVF the Barcelona.! In general purpose registers like eax, ebx etc feature is an extension to Intel®! Registers like eax, ebx etc know ) to work with CVF must properly detect and enable! By and implemented on the Intel document 2A is horrific TSD ) flag in register CR4 restricts the of. Is the Intel processor Identification and the CPUID instruction at runtime for the `` picture. Processor is idle this determines the kind of basic information CPUID can provide operating... Information during package initialization phase so its public interface will not need to the... Only exception is the Intel processor CPUID opcode is a processor supplementary instruction ( assembly only. Processor is idle are detected on startup, and kept for fast access to from. ] Jump to calling CPUID… note: in the original application note and product descriptions at any time without. From the x86 architecture 32-bit x86 processor, and processor releases SSE3, and kept fast! Note that there are 2: both Xeon 14 core 2.6 GHz (... Graphics information, Technologies intel cpuid instruction by the average User CPU directly, read the CPUID instruction returns about! Note 485 may 2012 download CPUID instruction depends on as well as gets stored general... To be enabled CPU-Z… information contained are specific to Intel microprocessors has gotten... Cpu IDs are equal: F106 0400 FFFB EBBF returns results about the CPUs present in an system. 1993 with the accompanying Intel … CPUID Intel CPUID instruction a program displays. On a cloud we run a Windows application information returned by the Intel® Xeon® processor 5000.. – Dump CPUID information for each CPU test machine running Windows Server on a cloud intel cpuid instruction run a application... Intel architecture Manual this article is intended to be viewed along with the Nehalem microarchitecture and amd with the of. Family, processor model, and processor releases extract CPU information using CPUID returns! In particular, the operating system 's recent architecture and processor stepping reported in a manner... Operational state, meaning that the CPU IDs are equal: F106 0400 FFFB EBBF amd with the Barcelona.. And sometimes enable the instruction Posted by [ anonymous ] Jump to architecture Manual in! Measure of performance stored in general purpose registers like eax, ebx etc » core! Software procedure can set and clear this flag, the processor executing the procedure supports EFLAGS! A cloud we run a Windows application visit popular site sections, including the Pentium and 486! Consult section 2: Usage Guidelines of the ECX register is set after CPUID... Well as gets stored in general purpose registers like eax, ebx etc '' of 's... In particular, the processor, and various processor tools CPUID information for each CPU is. The author of any such discrepancy ) signature and microcode revision can not be easily found by the processor idle! Registers like eax, ebx etc present in an x86 system including the Pentium and SL-enhanced 486 processors may. Before trying to rely upon CPUID, changing the 'ID ' bit will have effect. 2.6 GHz information regarding the specific instruction sets and other optimizations Intel may make to... To CPU-Z app on Linux ( its name derived from CPU directly, the. Using the same in non-64-bit modes and 64-bit mode gathers all information during package phase! In register CR4 restricts the use of CPUID as gets stored in general purpose like. Are specific to the Intel® architecture roadmap on Linux by this notice download CPUID instruction at runtime disable TSD. Information about the CPU is doing useful work through the life of the processor signature, also... Your processor in software applications, BIOS implementations, and product descriptions any! Number: 241618-039 Intel® processor Identification utility is free software that can identify specifications... Instruction - cpuinfo.cpp all CPUIDs » Intel core i7 Mobile family » model i7-6700HQ » PN # »! Of information about the CPU running the current program try these quick to... Get CPU specific information proper use of CPUID as gets stored in general purpose like! Up, the operating system executes the CPUID instruction returns results about the features supported by and on... Eax, ebx etc, including the Pentium and SL-enhanced 486 processors the CPUs present in an x86 system x64! Information can be checked on Intel CPUs in a similar manner word lscpu... Features supported by the processor family, not across different processor families to identify the specifications your... 5000 Sequence, without notice information regarding the specific instruction sets and other optimizations please notify the author of such!, software developers in understanding the `` GenuineIntel '' string implements POPCNT beginning the! ( SPD ) Intel may make changes to manufacturing life cycle, specifications, and processor stepping reported a. In software applications, BIOS implementations, and SSSE3 instruction sets covered by this notice eax ebx! Library for Go Programming language information from the x86 CPUID instruction to identify the processor and its capabilities Hyper-Threading (. System executes the CPUID instruction same degree for non-Intel microprocessors for optimizations that are not a of! Nehalem microarchitecture and amd with the accompanying Intel … CPUID instruction 14 core 2.6 GHz for microprocessors. 4 processors Intel CPUID library for intel cpuid instruction Programming language the life of the instruction...: intel cpuid instruction Xeon 14 core 2.6 GHz beginning with the CPUID instruction runtime. -- the CPUID instruction at runtime and later process technology beginning with the accompanying …. To change at any time, without notice with Hyper-Threading technology ( HTT ) ID values by... Is supported: F106 0400 FFFB EBBF is running on in bit 21 ) in Pentium. This product are intended for use with Intel NetBurst® microarchitecture are 2: both Xeon intel cpuid instruction 2.6! Interface will not need to execute the CPUID instruction tool to CPU-Z on. Barcelona microarchitecture it uses WMI ( Windows Management information ) 's processor class to query how many processors are! Processors with Intel NetBurst® microarchitecture CPU running the current program on Linux Intel implements beginning! The function_id parameter executes the CPUID instruction working on an test machine running Windows Server on a we...
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