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Nehalem µarch
General Info
Arch Type	CPU
Designer	Intel
Manufacturer	Intel
Introduction	August, 2008
Phase-out	March, 2010
Process	45 nm
Instructions
ISA	x86-64
Succession
Penryn Westmere

Nehalem was the microarchitecture for Intel's 45 nm process for desktops and servers as a successor to Penryn. Nehalem is named after the Nehalem River. Nehalem was replaced by the Westmere microarchitecture in 2010.

Nehalem wafer

Process Technology

45 nm Manufacturing Fabs
Fab	Location
D1D	Hillsboro, Oregon
Fab 32	Chandler, Arizona
Fab 28	Kiryat Gat, Israel

Penryn-based microprocessors were manufactured on a 45 nm process. Intel's 45 nm process is the is the first high-volume manufacturing process to introduce High-k + metal gate transistors.

Scaling:

	Core	Nehalem	Δ
	65 nm	45 nm
Metal Layers	8	9
Gate Pitch	220 nm	180 nm	0.82x
Interconnect Pitch	210 nm	160 nm	0.76x
SRAM bit cell​ (HD)	0.570 µm²	0.346 um²	0.61x
SRAM bit cell​ (LP)	0.680 µm²	0.382 um²	0.56x

Die Shot

Bloomfield

• 263 mm²
• 731,000,000 transistors
• 45 nm process
• 4 cores

Lynnfield

• 296 mm²
• 774,000,000 transistors
• 45 nm process
• 4 cores

Nehalem-EX

• 648 mm²
• 2.300,000,000 transistors
• 45 nm process
• 8 cores

All Nehalem Chips

	List of Nehalem 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
i7-720QM	23 September 2009	$ 364.00 € 327.60 £ 294.84 ¥ 37,612.12	Core i7	Clarksfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB	45 W 45,000 mW 0.0603 hp 0.045 kW	1.6 GHz 1,599.99 MHz 1,599,990 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				✘	✔	✔	✔
i7-740QM	22 June 2010	$ 378.00 € 340.20 £ 306.18 ¥ 39,058.74	Core i7	Clarksfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB	45 W 45,000 mW 0.0603 hp 0.045 kW	1.733 GHz 1,733.33 MHz 1,733,330 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				✘	✔	✔	✔
i7-820QM	23 September 2009	$ 546.00 € 491.40 £ 442.26 ¥ 56,418.18	Core i7	Clarksfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	45 W 45,000 mW 0.0603 hp 0.045 kW	1.733 GHz 1,733.33 MHz 1,733,330 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				✘	✔	✔	✔
i7-840QM	22 June 2010	$ 568.00 € 511.20 £ 460.08 ¥ 58,691.44	Core i7	Clarksfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	45 W 45,000 mW 0.0603 hp 0.045 kW	1.867 GHz 1,866.66 MHz 1,866,660 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				✘	✔	✔	✔
i7-920XM	23 September 2009	$ 1,054.00 € 948.60 £ 853.74 ¥ 108,909.82	Core i7EE	Clarksfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	55 W 55,000 mW 0.0738 hp 0.055 kW	2 GHz 1,999.99 MHz 1,999,990 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				✘	✘	✔	✔
i7-940XM	22 June 2010	$ 1,096.00 € 986.40 £ 887.76 ¥ 113,249.68	Core i7EE	Clarksfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	55 W 55,000 mW 0.0738 hp 0.055 kW	2.133 GHz 2,133.33 MHz 2,133,330 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				✘	✘	✔	✔
i7-965	17 November 2008		Core i7EE	Bloomfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	130 W 130,000 mW 0.174 hp 0.13 kW	3.2 GHz 3,200 MHz 3,200,000 kHz	3.467 GHz 3,467 MHz 3,467,000 kHz	24 GiB 24,576 MiB 25,165,824 KiB 25,769,803,776 B 0.0234 TiB				✘	✘	✘	✘
i7-975	2 June 2009		Core i7EE	Bloomfield	4	8	1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB	8 MiB 8,192 KiB 8,388,608 B 0.00781 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				✘	✘	✘	✘