Westmere (microarchitecture)
Topside of a Core i7-970 | |
| General information | |
|---|---|
| Launched | January 7, 2010 |
| Performance | |
| Max. CPU clock rate | 1.06 GHz to 4.40 GHz |
| QPI speeds | 4.80 GT/s to 6.40 GT/s |
| DMI speeds | 2.50 GT/s |
| Physical specifications | |
| Transistors |
|
| Cores |
|
| GPUs | 533 MHz to 900 MHz 177M 45nm (K0) |
| Sockets | |
| Cache | |
| L1 cache | 64 KB per core |
| L2 cache | 256 KB per core |
| L3 cache | 2 to 30 MB shared |
| Architecture and classification | |
| Microarchitecture | Nehalem |
| Instruction set | x86-16, IA-32, x86-64 |
| Extensions | |
| Products, models, variants | |
| Model |
|
| History | |
| Predecessor | Nehalem |
| Successor | Sandy Bridge |
| Support status | |
| Unsupported | |
Westmere (formerly Nehalem-C) is a CPU microarchitecture developed by Intel. It is a 32 nm die shrink of its predecessor, Nehalem, and shares the same CPU sockets with it. Some Westmere models have integrated graphics processors, branded as Intel HD Graphics, that support DirectX 10.1 and OpenGL 2.1 API.
The first Westmere-based processors were released on January 7, 2010. They were labeled under Intel's Core, Pentium, Celeron, and Xeon brandings.