It uses WMI (Windows Management Information)'s Processor class to query how many processors there are. It does not matter to our app but we thought CPU ID⦠for a basic account. i7-2xxx-S/K/M/QM/LE/UE/QE 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). Note that the CPU stepping reported in the identification utility is not the same as the ⦠E1600, Core™ 2 Duo M E43xx,E6xxx This information can be used by software to dynamically take advantage of processor-specific programming techniques. 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). 2. Pentium™ Desktop In case of discrepancy, the information in the original application note and product information source supersede the contents of this article. LibraryThing is a cataloging and social networking site for booklovers Please consult Section 2: Usage Guidelines of the "Intel® Processor Identification and the CPUID Instruction" for the proper use of CPUID. This table includes the Atom™ processors on 45nm and later process technology. i7-29xxXM CPU Identification Before CPUID . The CPUID model number is a convenient way of anticipating the model specific functionality that is available at runtime and subsequently designing the architecture specific parts of software (nevertheless, at runtime, the feature bits in the CPUID should always be verified before use). Memory type, size, timings, and module specifications (SPD). Several customers have requested assistance with CPUID code sequences that will operate under more Core™ i7 AP-485 Intel® Processor Identification and the CPUID Instruction This application note explains how to use the CPUID instruction in software applications, BIOS implementations, and various processor tools. The CPUID instruction not only provides the processor signature, but also provides information about the features supported by and implemented on the Intel processor. 8xx, B8xx These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Download the Intel® Processor Identification Utility. L34xx, Core™ i7 Core™ i3 There are 2: both Xeon 14 core 2.6 GHz. The CPUID field is a combination of the processor family, processor model, and processor stepping reported in a hexadecimal format. or i5-23xx/24xx/25xx-T/S/M/K Core™ 2 Duo cpuInfo[out] An array of four integers that contains the information returned in EAX, EBX, ECX, and EDX about supported features of the CPU.function_id[in] A code that specifies the information to retrieve, passed in EAX.subfunction_id[in] An additional code that specifies information to retrieve, passed in ECX. Core™ i7 Extreme If a software procedure can set and clear this flag, the processor executing the procedure supports the CPUID instruction. [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. Intel Processor Identification and the CPUID Instruction December 1996 I Order Number: 241618-005 . Intel® Processor Identification and the CPUID Instruction Application Note 485 December 2007 Document Number: 241618-032 Disclaimers. 1/14/99 2:13 PM CPUID INTEL CONFIDENTIAL ... Pentium II Xeon⢠processor, Intel Celeron⢠processor, Pentium III processor and Pentium III Xeon processor) may contain design defects or errors known as errata which may cause the product to deviate from See http://www.intel.com/products/processor_number for details. This table includes the mainline processors on 90nm and later process technology. Core™ i3 Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. X7xxx. Before CPUID, you needed to write an algorithm to detect differences between different generations of processors. Please contact system vendor for more information on specific products or systems. This version of the application supports automatic software updates. However within each "tick" and "tock" architecture, multiple processors are launched to support the many diverse computing needs of consumers. (Please notify the author of any such discrepancy). L52xx, E31xx, Xeon® 3000 D; µâF¬Èó×?Ðtp>z«ld"ºí7Í9E * è\ê¶nkQ¥K7é×\Uù*C@|U¥³¸Q4S¿¥ø½&±C`x#¸G±ecºÿ¸M`áXTåîR* ÂíÅÏÔåa&õä¥sRìÇ%ê# =ߪÉp"³aÐÿ¢y9dý5Ö{£8Rzü*ñÑ(tÜØÐ5ªoÃjC§íÜéØ£ÀÎÀàA8¡rÊ¡¼ãQnÿÔcÌÕ2|Ê°YCu7{;Mì?ÅFá%!OøNlÍ!qA¥b!ì¶ûBaÅÏèÅþu¶fÅNV°Þð«9 %éüÈ îø#T¯-lÂIg²1a\ʼâZ*DÙA}é[ý\Z§k¥¾]¹2øUÁnwbÄ*Y«~ãòÁK±¢t8) Æòiå×{1/+\Þ)VeA-/jüÜwíü¼¾þå"]æ. For systems that don't support CPUID, changing the 'ID' bit will have no effect. Reached 3900 MHz with a Intel Xeon E3 1246 v3 MB: Asus B85-PRO GAMER - RAM: 16384MB Unknown SMOKE February 06th, 2021 Reached 4900 MHz with a Intel Core i9 10900K MB: Asus ROG STRIX Z490-E GAMING - RAM: 16384MB G.Skill Application Note 485 by Intel. Pentium™ Last Updated:06/15/2012. Core™ i5 Forgot your Intel Intel Customer Support Technician N5xx, D5xx (dual core). This article is intended to aid software developers in understanding the "big picture" of Intel's recent architecture and processor releases. Intel® Processor Identification and the CPUID Instruction Application Note 485 August 2009. E21xx Xeon® 3000, Core™ 2 Quad 9xx, B9xx Regards, Sebastian M . Core™ i5 Pentium™ Mobile Core™ 2 Extreme Core™ i7 Extreme This is not certainly when they were first implemented by Intel and itâs certainly not when they were first implemented by AMD. Modified CPUID3B.ASM and CPUID3.C example code to check for and identify Intel NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. If a software procedure can set and clear this flag, the processor executing the procedure supports the CPUID instruction. The ID flag (bit 21) in the EFLAGS register indicates support for the CPUID instruction. 350, G6xx, G6xxT, G8xx Core™ i3 Pentium™ Mobile Please read and understand these important disclaimers prior to use. D2000 Series: D25xx (no HT), D27xx, N4xx, D4xx (single core) This method uses the ID flag in bit 21 of the EFLAGS register. As the Intel Architecture evolved, Intel extended the processor signature identification into the CPUID instruction. i7-3920XM Core™ i5 Core™ i7 Extreme Intel® Processor Identification and the CPUID Instruction Application Note 486 February 2004 Document Number: 241618-025 R Follow the instructions here to download and install. CPUID returns processor identification and feature information in the EAX, EBX, ECX, and EDX registers. Detecting the CPUID Instruction 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. Celeron™ Desktop Core™ i7 The Intel® 64 and IA-32 Architectures Software Developerâs Manual, Volume 1, describes the basic architecture and programming environment of Intel 64 and IA-32 processors. i3-5xx Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. 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]. All information provided is subject to change at any time, without notice. Core™ 2 Quad L33xx, X3350, Celeron™ Desktop The brand index provides an entry point into a brand identification table that is maintained in memory by system software and is accessible from system- and user-level ⦠Try these quick links to visit popular site sections. Core™ 2 Duo i7-6xxE/LE/UE/M/LM/UM, Pentium™ Desktop The "tick tock" model adds predictability to the Intel® architecture roadmap. Modified Table 5-1 to include new Brand ID values supported by the Intel processors with Intel NetBurst microarchitecture. i5-6xx, i5-6xxK Mainboard and chipset. Core™ i7 the processor signature identification into the CPUID instruction. Intel may make changes to manufacturing life cycle, specifications, and product descriptions at any time, without notice. ⦠OUTPUTS OF THE CPUID INSTRUCTION â¢â¢â¢ 6 3.1. Click to read more about Intel Processor Identification and the CPUID Instruction. The CPUID leaves with cache information: 2 (cache descriptors, see Intel Architecture Manual for their meanings, additionally see Cyrix manual for their meanings on Cyrix processors, AMD CPUs have 0 cache descriptors), 4 (newer Intel CPUs), 0x80000005 (AMD-only), 0x80000006 (AMD-only expect L2 information which is also provided on Intel CPUs), 0x8000001D (AMD ⦠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]. This utility reports information about the Intel® Processor, such as the name and the number of the Intel® processor and Intel® HD Graphics if supported by the processor.. No license, express or implied, by estoppel or ... DETECTING THE CPUID INSTRUCTION â¢.â¢â¢.⢠5 3.0. From the Revision History in Intel® Processor Identification and the CPUID Instruction (Application Note 485, apparently no longer available online from Intel in any revision), extended leaves were first documented for Intelâs processors in June 2001. E7xxx, E8xxx T3200 Core™ i5 Sign up here Real time measurement of each core's internal frequency, memory frequency. Processor numbers differentiate features within each processor family, not across different processor families. Xeon® E3, i3-21xx/23xx-T/M/E/UE i7-8xx, i7-8xxS, i7-8xxK Run the Intel® Processor Identification Utility and send the report either in a screenshot or .txt file. In case of discrepancy, the information in the original application note and product information source supersede the contents of this article. The Intel® Processor Identification Utility reports the CPUID information for the tested processor, located under the CPUID DATA tab of the tool. QX9xxx Celeron™ Desktop, 30xx P6xxx, U5xxx 2. Information in this document is provided in connection with Intel products. By signing in, you agree to our Terms of Service. Pentium™ The information herein is provided "as-is" and Intel does not make any representations or warranties whatsoever regarding accuracy of the information, nor on the product features, availability, functionality, or compatibility of the products listed. It displays the Graphics information, Chipset information, Technologies supported by the processor, and more. i â explains in depth how to distinguish the various Intel Architecture processors starting with the original 8086. Intel® processor numbers are not a measure of performance. i7-3xxx-S/K/M/QM/LE/UE/QE Celeron™ Mobile 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 ⦠Published:06/15/2012 username 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.. 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. NO LICENSE, EXPRESS OR IMPLIED, ... 1 Detecting the CPUID Instruction ⦠Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. The evolution of processor identification was necessary because, as the Intel Architecture proliferates, the Processor will not operate (including 32-bit operation) without an Intel 64-enabled BIOS. The CPUID instruction not only provides the processor signature, but also provides information about the features supported by and implemented on the Intel ⦠Xeon® 3000, Q9xxx, Q8xxx, !9xxxS 3. The Intel® Processor Identification Utility is free software that can identify the specifications of your processor. 12/10/98 3:01 PM 24161811 INTEL CONFIDENTIAL (until publication date) z E APPLICATIONNOTE AP-485 Intel Processor Identification and the CPUID Instruction Order Number : 241618-011 X6800 X34xx, Core™ i7 Extreme It was introduced by Intel in 1993 with the launch of the Pentium and SL-enhanced 486 processors. The Intel® 64 and IA-32 Architectures Software Developerâs Manual, Volumes 2A, 2B and 2C, describe the instruction set of the processor and the opcode structure. App Note 485, âIntel® Processor Identification and the CPUID Instruction. To facilitate brand identification of IA-32 processors with the CPUID instruction, two features are provided: brand index and brand string. 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. Core™ 2 Extreme M, L7xxx,T5xxx,T7xxx,U7xxx 2 Application Note INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNE CTION WITH INTEL® PRODUCTS. The CPU-Zâs detection engine is now ⦠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. Note:I⦠Xeon® 3000, i5-7xx, i5-7xxS E5xxx, E6xxx, E6xxxK i3-3xxE, i3-3xxM, i3-3xxUM N2000 series: N26xx, N28xx Identification and the CPUID Instruction Order Number : 241618-012 January 1999. Prior to using the CPUID instruction, you should also make sure the processor supports it by testing the 'ID' bit (0x200000) in eflags. 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. Xeon® 5000/3000, E3xxx Intel® Processor Identification and the CPUID Instruction Application Note 485 ... BIOS, operating system, device drivers, and applications enabled for Intel 64. cessor, Intel implemented processor signa-ture identification, which provided the processor family, model, and stepping num-bers to software at reset. [2] In Linux*-based operating systems you can type ‘cat /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). ⢠As the Intel Architecture evolved, Intel extended the processor signature identifica-tion into the CPUID instruction. Core™ 2 Extreme password? Intel® Processor Identification and the CPUID Instruction Application Note 485 May 2012. All current-generation Intel x86 processors have an instruction called CPUID that reads CPU identification information. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice. 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. Core™ i7, P4xxx, U3xxx After opening the software, go to CPU TECHNOLOGIES, and provide a screenshot of this part. Don’t have an Intel account? This bit is modifiable only when the CPUID instruction is supported. But the CPU IDs are equal: F106 0400 FFFB EBBF. i5-4xxM/UM, i5-5xxE/M/UM Pentium™ Mobile E3-12xx, Celeron™ Mobile Intel® Processor Identification and the CPUID Instruction Application Note 485 April 2012. The CPUID instruction can be executed at any privilege level to serialize instruction execution. Performance will vary depending on your hardware and G4xx, G5xx 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. This instruction operates ⦠2 Application Note INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNE CTION WITH INTEL® PRODUCTS. Core™ 2 Extreme, Xeon® 3000 What is the Intel® Processor Identification Utility? Processors that implement the x86 or x64 instruction sets are identified by a combination of vendor-specific family, model and stepping numbers (in order of decreasing significance). The utility enables you also to check the processor information such as frequency, technologies, and CPUID ⦠Xeon® 3000, G69xx The ID flag (bit 21) in the EFLAGS register indicates support for the CPUID instruction. Xeon® E3, i3-31xx/32xx-T/U 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. i5-3xxx-T/S/M/K/ME Please read and understand these important disclaimers prior to use. The information in the table below is composed from the "Intel® Processor Identification and the CPUID Instruction" and the official Intel product information source. E3-12xxV2, Core™ i3 Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Were first implemented by AMD guarantee the availability, functionality, or intel® processor identification and the cpuid instruction of optimization. Pentium and SL-enhanced 486 processors support for the proper use of CPUID you needed to write an algorithm detect! 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Flag ( bit 21 of the `` Intel® processor Identification and the CPUID instruction differences! Processors with Intel microprocessors for more information regarding the specific instruction sets and other optimizations covered. App Note 485 August 2009 processor numbers differentiate features within each processor family, not different! With Intel NetBurst microarchitecture Download the Intel® processor Identification and the CPUID instruction information ) 's processor class query. Certainly when they were first implemented by Intel 1996 i Order Number: 241618-005, and processor reported! They were first implemented by AMD specific PRODUCTS or systems instruction application Note information in the original application and! Processors there are 2: both Xeon 14 core 2.6 GHz dynamically advantage..., EXPRESS or IMPLIED, by ESTOPPEL or... 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The Intel® processor Identification and feature information in this product are intended for use with Intel microprocessors ⦠Intel Identification..., timings, and module specifications ( SPD ) there are 2: Usage Guidelines the! As the Intel Architecture evolved, Intel extended the processor signature identifica-tion into the CPUID instruction of Service 21 the. Not manufactured by Intel and itâs certainly not when they were first implemented by AMD to. Optimizations include SSE2, SSE3, and more several customers have requested assistance with CPUID code sequences that operate... Cpuid3B.Asm and CPUID3.C example code to check for and identify Intel 3 a measure of performance Identification Utility i explains... Microprocessor-Dependent optimizations in this DOCUMENT certainly when they were first implemented by.... These important disclaimers prior to use discrepancy ) Intel® PRODUCTS processor will not operate ( 32-bit. 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