Westmere (microarchitecture)

Westmere

Intel Core i7-970
General information
Launched	January 7, 2010; 14 years ago (January 7, 2010)
Performance
Max. CPU clock rate	1.06 GHz to 3.46 GHz
QPI speeds	4.80 GT/s to 6.40 GT/s
DMI speeds	2.50 GT/s
Cache
L1 cache	64 KB per core
L2 cache	256 KB per core
L3 cache	2 MB to 30 MB shared
Architecture and classification
Microarchitecture	Nehalem
Instruction set	x86-16, IA-32, x86-64
Extensions	AES-NI, CLMUL MMX, SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2 VT-x, VT-d
Physical specifications
Transistors	382M to 2600M 32nm
Cores	2-6 (4-10 Xeon)
GPUs	533 MHz to 900 MHz 177M 45nm (K0)
Sockets	LGA 1156 LGA 1366 LGA 1567 rPGA988A
Products, models, variants
Model	Core in, Xeon
History
Predecessor	Nehalem
Successor	Sandy Bridge
Support status
Unsupported

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.