Westmere - Microarchitectures - Intel

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	Westmere µarch
	General Info
Arch Type	CPU
Designer	Intel
Manufacturer	Intel
Introduction	January, 2010
Phase-out	August, 2011
Process	32 nm
	Succession
	Nehalem Sandy Bridge

Westmere (WSM) was the microarchitecture for Intel's 32 nm process for desktops and servers. Westmere was introduced in 2010 as a process shrink of Nehalem which introduced a number enhancements.

For desktop and mobile, Westmere was branded as 1st Generation Intel Core processors.

Codenames

Core	Platform	Cores(Threads)	IGP	Description
Gulftown	X58 Platform	6(12)	✘	High-end desktops & enthusiasts market
Clarkdale	Calpella	2(4)	✔	Mainstream desktop performance processors
Arrandale	Calpella	2(4)	✔	Mainstream mobile performance processors
Westmere EP		4(4) - 6(12)	✘	Low-end server processors
Westmere EX		6(12) - 10(12)	✘	High-end server processors

Brands

Logo	Family	General Description	Differentiating Features
Logo	Family	General Description	Cores	HT	IGP	TBT	ECC
	Celeron	Entry-level Budget	2	✘
	Pentium	Budget	2	✘
	Core i3	Low-end Performance	2	✔
	Core i5	Mid-range Performance	2	✔
	Core i7	High-end Performance (Mobile)	2	✔
	Core i7	High-end Performance (Desktop)	6	✔
	Core i7EE	Enthusiasts/High-end Performance	6	✔
	Xeon E7	High-end server	6 - 10	✔

Process Technology

32nm Manufacturing Fabs
Fab	Location
D1D	Hillsboro, Oregon
D1C	Hillsboro, Oregon
Fab 32	Chandler, Arizona
Fab 11X	Rio Rancho, New Mexico

Westmere-based microprocessors and system on chips were manufactured on a 32 nm process ("P1268" for CPUs and "P1269" for SoCs). Intel's 32 nm process is second-generation high-K metal-gate transistors. Some of the modifications that took place from their 45 nm process is reduction in the thickness of the high-K layer from 1 nm to 0.9 nm. The process shrink enjoyed a roughly 0.7x scaling compared to the 45 nm process for the gate pitch and metal 1 interconnect.

Scaling:

	Nehalem	Westmere	Δ
	45 nm	32 nm
Gate Pitch	180 nm	112.5 nm	0.63x
Interconnect Pitch	160 nm	112.5 nm	0.70x
SRAM bit cell (HD)	0.346 µm²	0.148 um²	0.43x
SRAM bit cell (HS)	? µm²	0.199 um²	?x
SRAM bit cell (LP)	0.382 µm²	0.171 um²	0.45x

Architecture

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Die

Dual-Core Westmere die

81 mm²
384,000,000 transistors
32 nm process
2 cores

Hexa-Core Westmere die

240 mm²
1,170,000,000 transistors
32 nm process
6 cores

Deca-Core Westmere die

513 mm²
2,600,000,000 transistors
32 nm process
10 cores

All Westmere Chips

	List of Westmere Processors
	Main processor									Turbo Boost		Mem	IGP			Major Feature Diff
Model	Launched	Price	Family	Core Name	Cores	Threads	L2$	L3$	TDP	Frequency	TBT 1.0	Max Mem	GPU	Frequency	Turbo	AES	vPro	VT-d	VT-x
	Uniprocessors
P4500	28 March 2010		Celeron	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	1.867 GHz 1,866.66 MHz 1,866,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✘
P4505	28 March 2010		Celeron	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	1.867 GHz 1,866.66 MHz 1,866,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✘
P4600	28 March 2010		Celeron	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2 GHz 1,999.99 MHz 1,999,990 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✘
U3400	24 May 2010		Celeron	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.067 GHz 1,066.66 MHz 1,066,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✘
U3405	15 August 2010		Celeron	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.067 GHz 1,066.66 MHz 1,066,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✘
U3600	11 January 2011		Celeron	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.2 GHz 1,199.99 MHz 1,199,990 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✘
i3-330E	7 January 2010	$ 177.00 € 159.30 £ 143.37 ¥ 18,289.41	Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✔
i3-330M	7 January 2010		Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✔
i3-330UM	24 May 2010		Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.2 GHz 1,199.99 MHz 1,199,990 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✔
i3-350M	7 January 2010		Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.267 GHz 2,266.66 MHz 2,266,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✔
i3-370M	22 June 2010		Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.4 GHz 2,399.99 MHz 2,399,990 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✔
i3-380M	26 September 2010		Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.533 GHz 2,533.33 MHz 2,533,330 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✔
i3-380UM	1 October 2010		Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.333 GHz 1,333.33 MHz 1,333,330 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✔
i3-390M	11 January 2011		Core i3	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.667 GHz 2,666.66 MHz 2,666,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✔
i5-430M	7 January 2010		Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.267 GHz 2,266.66 MHz 2,266,660 kHz	2.533 GHz 2,533.33 MHz 2,533,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✘	✘	✘	✔
i5-430UM	20 June 2010		Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.2 GHz 1,199.99 MHz 1,199,990 kHz	1.733 GHz 1,733.33 MHz 1,733,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✔
i5-450M	20 June 2010		Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.4 GHz 2,399.99 MHz 2,399,990 kHz	2.667 GHz 2,666.66 MHz 2,666,660 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✘	✘	✘	✔
i5-460M	26 September 2010		Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.533 GHz 2,533.33 MHz 2,533,330 kHz	2.8 GHz 2,799.99 MHz 2,799,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✘	✘	✘	✔
i5-470UM	1 October 2010		Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.333 GHz 1,333.33 MHz 1,333,330 kHz	1.867 GHz 1,866.66 MHz 1,866,660 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✔
i5-480M	11 January 2011		Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.667 GHz 2,666.66 MHz 2,666,660 kHz	2.933 GHz 2,933.33 MHz 2,933,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✘	✘	✘	✔
i5-520E	7 January 2010	$ 210.00 € 189.00 £ 170.10 ¥ 21,699.30	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.4 GHz 2,399.99 MHz 2,399,990 kHz	2.933 GHz 2,933.33 MHz 2,933,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✘	✔	✔
i5-520M	7 January 2010	$ 225.00 € 202.50 £ 182.25 ¥ 23,249.25	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.4 GHz 2,399.99 MHz 2,399,990 kHz	2.933 GHz 2,933.33 MHz 2,933,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✔	✔	✔
i5-520UM	7 January 2010	$ 241.00 € 216.90 £ 195.21 ¥ 24,902.53	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.067 GHz 1,066.66 MHz 1,066,660 kHz	1.867 GHz 1,866.66 MHz 1,866,660 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✔	✔	✔
i5-540M	7 January 2010	$ 257.00 € 231.30 £ 208.17 ¥ 26,555.81	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.533 GHz 2,533.33 MHz 2,533,330 kHz	3.067 GHz 3,066.66 MHz 3,066,660 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✔	✔	✔
i5-540UM	24 May 2010	$ 250.00 € 225.00 £ 202.50 ¥ 25,832.50	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.2 GHz 1,199.99 MHz 1,199,990 kHz	2 GHz 1,999.99 MHz 1,999,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✔	✔	✔
i5-560M	26 September 2010	$ 225.00 € 202.50 £ 182.25 ¥ 23,249.25	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.667 GHz 2,666.66 MHz 2,666,660 kHz	3.2 GHz 3,199.99 MHz 3,199,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✔	✔	✔
i5-560UM	26 September 2010	$ 250.00 € 225.00 £ 202.50 ¥ 25,832.50	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.333 GHz 1,333.33 MHz 1,333,330 kHz	2.133 GHz 2,133.33 MHz 2,133,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✔	✔	✔
i5-580M	26 September 2010	$ 266.00 € 239.40 £ 215.46 ¥ 27,485.78	Core i5	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.667 GHz 2,666.66 MHz 2,666,660 kHz	3.333 GHz 3,333.33 MHz 3,333,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✔	✔	✔
i7-610E	7 January 2010	$ 332.00 € 298.80 £ 268.92 ¥ 34,305.56	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.533 GHz 2,533.33 MHz 2,533,330 kHz	3.2 GHz 3,199.99 MHz 3,199,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✘	✔	✔
i7-620LE	7 January 2010	$ 247.00 € 222.30 £ 200.07 ¥ 25,522.51	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	25 W 25,000 mW 0.0335 hp 0.025 kW	2 GHz 1,999.99 MHz 1,999,990 kHz	2.8 GHz 2,799.99 MHz 2,799,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	266 MHz 0.266 GHz 266,000 KHz	566 MHz 0.566 GHz 566,000 KHz	✔	✔	✔	✔
i7-620LM	7 January 2010	$ 300.00 € 270.00 £ 243.00 ¥ 30,999.00	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	25 W 25,000 mW 0.0335 hp 0.025 kW	2 GHz 1,999.99 MHz 1,999,990 kHz	2.8 GHz 2,799.99 MHz 2,799,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	266 MHz 0.266 GHz 266,000 KHz	566 MHz 0.566 GHz 566,000 KHz	✔	✔	✔	✔
i7-620M	7 January 2010	$ 332.00 € 298.80 £ 268.92 ¥ 34,305.56	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.667 GHz 2,666.66 MHz 2,666,660 kHz	3.333 GHz 3,333.33 MHz 3,333,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✔	✔	✔
i7-620UE	7 January 2010	$ 248.00 € 223.20 £ 200.88 ¥ 25,625.84	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.067 GHz 1,066.66 MHz 1,066,660 kHz	2.133 GHz 2,133.33 MHz 2,133,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✘	✔	✔
i7-620UM	7 January 2010	$ 278.00 € 250.20 £ 225.18 ¥ 28,725.74	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.067 GHz 1,066.66 MHz 1,066,660 kHz	2.133 GHz 2,133.33 MHz 2,133,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✔	✔	✔
i7-640LM	7 January 2010	$ 332.00 € 298.80 £ 268.92 ¥ 34,305.56	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	25 W 25,000 mW 0.0335 hp 0.025 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz	2.933 GHz 2,933.33 MHz 2,933,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	266 MHz 0.266 GHz 266,000 KHz	566 MHz 0.566 GHz 566,000 KHz	✔	✔	✔	✔
i7-640M	13 September 2010	$ 346.00 € 311.40 £ 280.26 ¥ 35,752.18	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.8 GHz 2,799.99 MHz 2,799,990 kHz	3.467 GHz 3,466.66 MHz 3,466,660 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	766 MHz 0.766 GHz 766,000 KHz	✔	✔	✔	✔
i7-640UM	7 January 2010	$ 305.00 € 274.50 £ 247.05 ¥ 31,515.65	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.2 GHz 1,199.99 MHz 1,199,990 kHz	2.267 GHz 2,266.66 MHz 2,266,660 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✔	✔	✔
i7-660LM	13 September 2010	$ 346.00 € 311.40 £ 280.26 ¥ 35,752.18	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	25 W 25,000 mW 0.0335 hp 0.025 kW	2.267 GHz 2,266.66 MHz 2,266,660 kHz	3.067 GHz 3,066.66 MHz 3,066,660 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	266 MHz 0.266 GHz 266,000 KHz	566 MHz 0.566 GHz 566,000 KHz	✔	✔	✔	✔
i7-660UE	15 August 2010	$ 301.00 € 270.90 £ 243.81 ¥ 31,102.33	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.333 GHz 1,333.33 MHz 1,333,330 kHz	2.4 GHz 2,399.99 MHz 2,399,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✘	✔	✔
i7-660UM	7 January 2010	$ 317.00 € 285.30 £ 256.77 ¥ 32,755.61	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.333 GHz 1,333.33 MHz 1,333,330 kHz	2.4 GHz 2,399.99 MHz 2,399,990 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✔	✔	✔
i7-680UM	27 May 2010	$ 317.00 € 285.30 £ 256.77 ¥ 32,755.61	Core i7	Arrandale	2	4	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.467 GHz 1,466.66 MHz 1,466,660 kHz	2.133 GHz 2,133.33 MHz 2,133,330 kHz	8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✔	✔	✔	✔
i7-980X	16 March 2010		Core i7EE	Gulftown	6	12	1.5 MiB 1,536 KiB 1,572,864 B 0.00146 GiB	12 MiB 12,288 KiB 12,582,912 B 0.0117 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	3.333 GHz 3,333 MHz 3,333,000 kHz	3.6 GHz 3,600 MHz 3,600,000 kHz	24 GiB 24,576 MiB 25,165,824 KiB 25,769,803,776 B 0.0234 TiB				✔	✘	✘	✘
i7-990X	13 February 2011		Core i7EE	Gulftown	6	12	1.5 MiB 1,536 KiB 1,572,864 B 0.00146 GiB	12 MiB 12,288 KiB 12,582,912 B 0.0117 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	3.46 GHz 3,460 MHz 3,460,000 kHz	3.733 GHz 3,733 MHz 3,733,000 kHz	24 GiB 24,576 MiB 25,165,824 KiB 25,769,803,776 B 0.0234 TiB				✔	✘	✘	✘
P6000	20 June 2010		Pentium	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	1.867 GHz 1,866.66 MHz 1,866,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✘
P6100	26 September 2010		Pentium	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2 GHz 1,999.99 MHz 1,999,990 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✘
P6200	26 September 2010		Pentium	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✘
P6300	11 January 2011		Pentium	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	35 W 35,000 mW 0.0469 hp 0.035 kW	2.267 GHz 2,266.66 MHz 2,266,660 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	500 MHz 0.5 GHz 500,000 KHz	667 MHz 0.667 GHz 667,000 KHz	✘	✘	✘	✘
U5400	25 May 2010		Pentium	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.2 GHz 1,199.99 MHz 1,199,990 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✘
U5600	11 January 2011		Pentium	Arrandale	2	2	0.5 MiB 512 KiB 524,288 B 4.882812e-4 GiB	3 MiB 3,072 KiB 3,145,728 B 0.00293 GiB	18 W 18,000 mW 0.0241 hp 0.018 kW	1.333 GHz 1,333.33 MHz 1,333,330 kHz		8 GiB 8,192 MiB 8,388,608 KiB 8,589,934,592 B 0.00781 TiB	HD Graphics (Ironlake)	166 MHz 0.166 GHz 166,000 KHz	500 MHz 0.5 GHz 500,000 KHz	✘	✘	✘	✘
	Multiprocessors (2-way)
E7-2803	5 April 2011	$ 774.00 € 696.60 £ 626.94 ¥ 79,977.42	Xeon E7	Westmere EX	6	12	1.5 MiB 1,536 KiB 1,572,864 B 0.00146 GiB	18 MiB 18,432 KiB 18,874,368 B 0.0176 GiB	105 W 105,000 mW 0.141 hp 0.105 kW	1.733 GHz 1,733.33 MHz 1,733,330 kHz		1,024 GiB 1,048,576 MiB 1,073,741,824 KiB 1,099,511,627,776 B 1 TiB				✔	✘	✔	✔
E7-2820	5 April 2011	$ 1,334.00 € 1,200.60 £ 1,080.54 ¥ 137,842.22	Xeon E7	Westmere EX	8	16	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	18 MiB 18,432 KiB 18,874,368 B 0.0176 GiB	105 W 105,000 mW 0.141 hp 0.105 kW	2 GHz 1,999.99 MHz 1,999,990 kHz	2.267 GHz 2,266.66 MHz 2,266,660 kHz	1,024 GiB 1,048,576 MiB 1,073,741,824 KiB 1,099,511,627,776 B 1 TiB				✔	✘	✔	✔
E7-2830	5 April 2011	$ 1,779.00 € 1,601.10 £ 1,440.99 ¥ 183,824.07	Xeon E7	Westmere EX	8	16	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	105 W 105,000 mW 0.141 hp 0.105 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz	2.4 GHz 2,399.99 MHz 2,399,990 kHz	1,024 GiB 1,048,576 MiB 1,073,741,824 KiB 1,099,511,627,776 B 1 TiB				✔	✘	✔	✔
E7-2850	5 April 2011	$ 2,558.00 € 2,302.20 £ 2,071.98 ¥ 264,318.14	Xeon E7	Westmere EX	10	20	2.56 MiB 2,621.44 KiB 2,684,354.56 B 0.0025 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2 GHz 1,999.99 MHz 1,999,990 kHz	2.667 GHz 2,666.66 MHz 2,666,660 kHz	1,024 GiB 1,048,576 MiB 1,073,741,824 KiB 1,099,511,627,776 B 1 TiB				✔	✘	✔	✔
E7-2860	5 April 2011	$ 3,670.00 € 3,303.00 £ 2,972.70 ¥ 379,221.10	Xeon E7	Westmere EX	10	20	2.56 MiB 2,621.44 KiB 2,684,354.56 B 0.0025 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2.267 GHz 2,266.66 MHz 2,266,660 kHz	2.667 GHz 2,666.66 MHz 2,666,660 kHz	1,024 GiB 1,048,576 MiB 1,073,741,824 KiB 1,099,511,627,776 B 1 TiB				✔	✘	✔	✔
E7-2870	5 April 2011	$ 4,227.00 € 3,804.30 £ 3,423.87 ¥ 436,775.91	Xeon E7	Westmere EX	10	20	2.56 MiB 2,621.44 KiB 2,684,354.56 B 0.0025 GiB	30 MiB 30,720 KiB 31,457,280 B 0.0293 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2.4 GHz 2,399.99 MHz 2,399,990 kHz	2.8 GHz 2,799.99 MHz 2,799,990 kHz	1,024 GiB 1,048,576 MiB 1,073,741,824 KiB 1,099,511,627,776 B 1 TiB				✔	✘	✔	✔
	Multiprocessors (4-way)
E7-4807	5 April 2011	$ 890.00 € 801.00 £ 720.90 ¥ 91,963.70	Xeon E7	Westmere EX	6	12	1.5 MiB 1,536 KiB 1,572,864 B 0.00146 GiB	18 MiB 18,432 KiB 18,874,368 B 0.0176 GiB	95 W 95,000 mW 0.127 hp 0.095 kW	1.867 GHz 1,866.66 MHz 1,866,660 kHz		2,048 GiB 2,097,152 MiB 2,147,483,648 KiB 2,199,023,255,552 B 2 TiB				✔	✘	✔	✔
E7-4820	5 April 2011	$ 1,446.00 € 1,301.40 £ 1,171.26 ¥ 149,415.18	Xeon E7	Westmere EX	8	16	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	18 MiB 18,432 KiB 18,874,368 B 0.0176 GiB	105 W 105,000 mW 0.141 hp 0.105 kW	2 GHz 1,999.99 MHz 1,999,990 kHz	2.267 GHz 2,266.66 MHz 2,266,660 kHz	2,048 GiB 2,097,152 MiB 2,147,483,648 KiB 2,199,023,255,552 B 2 TiB				✔	✘	✔	✔
E7-4830	5 April 2011	$ 2,059.00 € 1,853.10 £ 1,667.79 ¥ 212,756.47	Xeon E7	Westmere EX	8	16	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	105 W 105,000 mW 0.141 hp 0.105 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz	2.4 GHz 2,399.66 MHz 2,399,660 kHz	2,048 GiB 2,097,152 MiB 2,147,483,648 KiB 2,199,023,255,552 B 2 TiB				✔	✘	✔	✔
E7-4850	5 April 2011	$ 2,837.00 € 2,553.30 £ 2,297.97 ¥ 293,147.21	Xeon E7	Westmere EX	10	20	2.56 MiB 2,621.44 KiB 2,684,354.56 B 0.0025 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2 GHz 1,999.99 MHz 1,999,990 kHz	2.4 GHz 2,399.99 MHz 2,399,990 kHz	2,048 GiB 2,097,152 MiB 2,147,483,648 KiB 2,199,023,255,552 B 2 TiB				✔	✘	✔	✔
E7-4860	5 April 2011	$ 3,838.00 € 3,454.20 £ 3,108.78 ¥ 396,580.54	Xeon E7	Westmere EX	10	20	2.56 MiB 2,621.44 KiB 2,684,354.56 B 0.0025 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2.267 GHz 2,266.66 MHz 2,266,660 kHz	2.667 GHz 2,666.66 MHz 2,666,660 kHz	2,048 GiB 2,097,152 MiB 2,147,483,648 KiB 2,199,023,255,552 B 2 TiB				✔	✘	✔	✔
E7-4870	5 April 2011	$ 4,394.00 € 3,954.60 £ 3,559.14 ¥ 454,032.02	Xeon E7	Westmere EX	10	20	2.56 MiB 2,621.44 KiB 2,684,354.56 B 0.0025 GiB	30 MiB 30,720 KiB 31,457,280 B 0.0293 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2.4 GHz 2,399.99 MHz 2,399,990 kHz	2.8 GHz 2,799.99 MHz 2,799,990 kHz	2,048 GiB 2,097,152 MiB 2,147,483,648 KiB 2,199,023,255,552 B 2 TiB				✔	✘	✔	✔
	Multiprocessors (8-way)
E7-8830	5 April 2011	$ 2,280.00 € 2,052.00 £ 1,846.80 ¥ 235,592.40	Xeon E7	Westmere EX	8	16	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	105 W 105,000 mW 0.141 hp 0.105 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz	2.4 GHz 2,399.99 MHz 2,399,990 kHz	4,096 GiB 4,194,304 MiB 4,294,967,296 KiB 4,398,046,511,104 B 4 TiB				✔	✘	✔	✔
E7-8837	5 April 2011	$ 2,280.00 € 2,052.00 £ 1,846.80 ¥ 235,592.40	Xeon E7	Westmere EX	8	8	2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2.667 GHz 2,666.66 MHz 2,666,660 kHz	2.8 GHz 2,799.99 MHz 2,799,990 kHz	4,096 GiB 4,194,304 MiB 4,294,967,296 KiB 4,398,046,511,104 B 4 TiB				✔	✘	✔	✔
E7-8850	5 April 2011	$ 3,059.00 € 2,753.10 £ 2,477.79 ¥ 316,086.47	Xeon E7	Westmere EX	10	20	2.56 MiB 2,621.44 KiB 2,684,354.56 B 0.0025 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2 GHz 1,999.99 MHz 1,999,990 kHz	2.4 GHz 2,399.99 MHz 2,399,990 kHz	4,096 GiB 4,194,304 MiB 4,294,967,296 KiB 4,398,046,511,104 B 4 TiB				✔	✘	✔	✔
E7-8860	5 April 2011	$ 4,061.00 € 3,654.90 £ 3,289.41 ¥ 419,623.13	Xeon E7	Westmere EX	10	20	2.5 MiB 2,560 KiB 2,621,440 B 0.00244 GiB	24 MiB 24,576 KiB 25,165,824 B 0.0234 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2.267 GHz 2,266.66 MHz 2,266,660 kHz	2.667 GHz 2,666.66 MHz 2,666,660 kHz	4,096 GiB 4,194,304 MiB 4,294,967,296 KiB 4,398,046,511,104 B 4 TiB				✔	✘	✔	✔
E7-8867L	5 April 2011	$ 4,172.00 € 3,754.80 £ 3,379.32 ¥ 431,092.76	Xeon E7	Westmere EX	10	20	2.5 MiB 2,560 KiB 2,621,440 B 0.00244 GiB	30 MiB 30,720 KiB 31,457,280 B 0.0293 GiB	105 W 105,000 mW 0.141 hp 0.105 kW	2.133 GHz 2,133.33 MHz 2,133,330 kHz	2.533 GHz 2,533.33 MHz 2,533,330 kHz	4,096 GiB 4,194,304 MiB 4,294,967,296 KiB 4,398,046,511,104 B 4 TiB				✔	✘	✔	✔
E7-8870	5 April 2011	$ 4,616.00 € 4,154.40 £ 3,738.96 ¥ 476,971.28	Xeon E7	Westmere EX	10	20	2.5 MiB 2,560 KiB 2,621,440 B 0.00244 GiB	30 MiB 30,720 KiB 31,457,280 B 0.0293 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	2.4 GHz 2,399.99 MHz 2,399,990 kHz	2.8 GHz 2,799.99 MHz 2,799,990 kHz	4,096 GiB 4,194,304 MiB 4,294,967,296 KiB 4,398,046,511,104 B 4 TiB				✔	✘	✔	✔
Count: 67

Documents

Intel® Core i7, Intel® Core i5 and Intel® Core i3 Processor-based Platforms for Embedded Computing, Platform brief

codename	Westmere +
designer	Intel +
first launched	January 2010 +
full page name	intel/microarchitectures/westmere (client) +
instance of	microarchitecture +
manufacturer	Intel +
microarchitecture type	CPU +
name	Westmere +
phase-out	August 2011 +
process	32 nm (0.032 μm, 3.2e-5 mm) +

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