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CPU-Z is more comprehensive in virtually all areas compared to the tools provided in the Windows to identify various hardware components, and thus assists in identifying certain components without the need of opening the case; particularly the core revision and RAM clock rate. It also provides information on the system's GPU.
CPUID should be called with EAX = 0 first, as this will store in the EAX register the highest EAX calling parameter (leaf) that the CPU implements. To obtain extended function information CPUID should be called with the most significant bit of EAX set. To determine the highest extended function calling parameter, call CPUID with EAX = 80000000h.
Threshold — first two public build of Windows 10 (1507 and 1511) Tiger — Apple Mac OS X 10.4; Tiger — Sun Java 2 Standard Edition 5.0; Tiger Eye — Tiger Mountain — Adobe Photoshop 3.0 for Mac; Tillamook — Intel Mobile Pentium with MMX; Tikanga — Red Hat Enterprise Linux 5; Tim — Apple Macintosh PowerBook 170
CPUID model numbers are 30h-3Fh. AMD Bulldozer Family 15h – the successor to 10h/K10. Bulldozer is designed for processors in the 10 to 220 W category, implementing XOP, FMA4 and CVT16 instruction sets. Orochi was the first design which implemented it. For Bulldozer, CPUID model numbers are 00h and 01h.
The Bloomfield core is closely related to the dual-processor Gainestown, which has the same CPUID value of 0106Ax (family 6, model 26) and which uses the same socket. Bloomfield uses a different socket than the later Lynnfield and Clarksfield processors based on the same 45 nm Nehalem microarchitecture , even though some of these share the same ...
Windows 10 is a major release of Microsoft's Windows NT operating system. ... some applications (particularly utility programs such as CPU-Z and Speccy) ...
The CPUID instruction can be used on both AMD and Intel CPUs to check whether the RDRAND instruction is supported. If it is, bit 30 of the ECX register is set after calling CPUID standard function 01H. [10] AMD processors are checked for the feature using the same test. [11] RDSEED availability can be checked on Intel CPUs in a similar manner.
Takes as input a CPUID leaf index in EAX and, depending on leaf, a sub-index in ECX. Result is returned in EAX,EBX,ECX,EDX. [d] Instruction is serializing, and causes a mandatory #VMEXIT under virtualization. Support for CPUID can be checked by toggling bit 21 of EFLAGS (EFLAGS.ID) – if this bit can be toggled, CPUID is present. Usually 3 [e]