Westmere (microarchitecture)

Westmere
Intel Core i7-970
General information
LaunchedJanuary 7, 2010; 14 years ago (January 7, 2010)
Performance
Max. CPU clock rate1.06 GHz to 3.46 GHz
QPI speeds4.80 GT/s to 6.40 GT/s
DMI speeds2.50 GT/s
Cache
L1 cache64 KB per core
L2 cache256 KB per core
L3 cache2 MB to 30 MB shared
Architecture and classification
MicroarchitectureNehalem
Instruction setx86-16, IA-32, x86-64
Extensions
Physical specifications
Transistors
Cores
  • 2-6 (4-10 Xeon)
GPUs533 MHz to 900 MHz
177M 45nm (K0)
Sockets
Products, models, variants
Model
  • Core in, Xeon
History
PredecessorNehalem
SuccessorSandy Bridge
Support status
Unsupported
Connection of the GPU inside the Westmere microarchitecture

Westmere (formerly Nehalem-C) is the code name given to the 32 nm die shrink of Nehalem. While sharing the same CPU sockets, Westmere included Intel HD Graphics, while Nehalem did not.

The first Westmere-based processors were launched on January 7, 2010, by Intel Corporation.

The Westmere architecture has been available under the Intel brands of Core i3, Core i5, Core i7, Pentium, Celeron and Xeon.