I am trying to read the CPU serial number from inside a software I am developing. When CPUID executes with EAX set to 0BH, the processor returns information about extended topology enumeration data. You don’t need a system information utility to find this information. For example, when shopping for a new MacBook Air, Apple tells you in the specs that the base CPU is a 1.6GHz dual-core Intel Core i5, Turbo Boost up to 3.6GHz, with 4MB L3 cache, but doesn’t reveal the specific model.. If you look at the code for the program you referenced, you will find that it uses the output from certain registers to determine if SGX is supported. Comparing their listed specifications is a good place to start: a CPU with a higher core count and faster clock speed will generally outperform its siblings in the same product generation.. Intel recommends first checking for the existence of Leaf 1FH before using leaf 0BH. Hello, perhaps anybody from you can help me finding out the stepping of the CPUID. Historically, Intel processors from the Pentium Pro onwards have a maximum CPUID input value of only 02h or 03h. To find this information in Windows 10’s Settings app, navigate to Settings > System > About. In my case for R630 box running on E5 V4 CPUs BIOS version 2.1.5 has 0xB000017 version. The CPUID command does not explicitly list SGX support. I have also read that Intel was thinking of dropping the CPU ID altogether, from their CPUs. There are several ways to judge the relative performance of CPUs. Using CPUID to Detect the presence of SSE 4.1 and SSE 4.2 Instruction Sets [PDF | 132kb]. Introduction. Garcia, Jesus L (Intel) wrote: Hello Ruoyu, Your hardware is fine and it supports SGX. Indeed, even after you’ve purchased a Mac, the information about the exact CPU model is hidden from the “About this Mac” system report. If you can't find the results for your processor, we encourage you to submit them into our CPUID database, and make them public. Might not be exactly what you are looking for, but Intel have a good article and sample code for enumerating Intel 64 bit platform architectures (processor, … Your computer’s CPU is probably made by Intel or AMD. The only exception is the Intel Pentium 4 with Hyper-Threading Technology (HTT) . Here’s how to see what CPU you have and how fast it is. When I do so, I get zeros. I have read that by default the CPUID is disabled by the BIOS / OS. Windows shows it in several different places. Several application notes have been written by Intel to assist customers with discerning which processor their application is running on and the features supported by a … I dumped the CPUID via Rightmark CPU Clock Utility. Download PDF. The "CPUID database" page shows only submissions, that the visitors elected to show publicly. If anyone would need - you may find CPU Microcode version in System Setup (BIOS). 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