Search results
Results from the WOW.Com Content Network
Stepping ID is a product revision number assigned due to fixed errata or other changes. The actual processor model is derived from the Model, Extended Model ID and Family ID fields. If the Family ID field is either 6 or 15, the model is equal to the sum of the Extended Model ID field shifted left by 4 bits and the Model field.
AMD now refers to the codename K8 processors as the Family 0Fh processors. 10h and 0Fh refer to the main result of the CPUID x86 processor instruction. In hexadecimal numbering, 0F(h) (where the h represents hexadecimal numbering) equals the decimal number 15, and 10(h) equals the decimal number 16.
In the model 23 (cpuid 01067xh), Intel started marketing stepping with full (6 MB) and reduced (3 MB) L2 cache at the same time, and giving them identical cpuid values. All steppings have the new SSE4.1 instructions. Stepping C1/M1 was a bug fix version of C0/M0 specifically for quad core processors and only used in those.
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.
Also code-named Ivy Bridge-EX. Part of the 22 nm Intel Ivy Bridge|Ivy Bridge] family. Reference unknown. 2013 Jasper Forest: CPU Xeon LC3500 series (dual-core), Xeon LC5500 series (quad-core), and the Celeron P1053 (single-core), intended for use in storage controllers paired with the 3420 chipset. Part of the 45 nm Nehalem family.
Voltage identification pins; 7.5 million transistors; 32 KB L1 cache; 512 KB 1 ⁄ 2 frequency external L2 cache; The Performance Enhanced mobile Pentium II (codenamed Dixon) had a full-speed 256 KB L2 cache; Klamath – 0.35 μm process technology (233, 266, 300 MHz) 66 MHz system bus clock rate; Family 6 model 3; Variants
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. [e] 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 [f]
With the introduction of the Pentium processor, Intel provided a pair of instructions (RDMSR and WRMSR) to access current and future "model-specific registers", as well as the CPUID instruction to determine which features are present on a particular model. Many of these registers have proven useful enough to be retained.