Westmere - Microarchitectures - Intel

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	Westmere µarch
	General Info

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Westmere 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	C/T	IGP	Description
Gulftown	X58 Platform	6C/12T		High-end desktops & enthusiasts market
Clarkdale	Calpella	2C/4T	✔	Mainstream desktop performance processors
Arrandale	Calpella	2C/4T	✔	Mainstream mobile performance processors

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
	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

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All Westmere Chips

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

codename	Westmere +
designer	Intel +
first launched	January 2010 +
full page name	intel/microarchitectures/westmere (client) +
instance of	microarchitecture +
instruction set architecture	x86-64 +
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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