Clarksfield (microprocessor)

Clarksfield

General information
Launched	2009
Discontinued	2012
Marketed by	Intel
Designed by	Intel
Common manufacturer	Intel
CPUID code	106Ex
Product code	80607
Performance
Max. CPU clock rate	1.60 GHz to 2.13 (turbo up to 3.33) GHz
DMI speeds	2 GT/s
Cache
L1 cache	256 KB (64 KB per core (32 KB instructions + 32 KB data))
L2 cache	1 MB (256 KB per core)
L3 cache	6 to 8 MB
Architecture and classification
Application	Quad-core mobile Extreme mobile
Technology node	45 nm
Microarchitecture	Nehalem
Instruction set	x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2
Instructions	MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2
Physical specifications
Cores	4
Memory (RAM)	Up to 8 GB Up to DDR3-1333 with 21 GB/s bandwidth
Package	Reduced pin grid array (rPGA)
Socket	Socket G1 (rPGA988)
Products, models, variants
Brand names	Core i7-7xxQM Core i7-8xxQM Core i7-9xxXM
History
Predecessor	Penryn-QC
Successor	Sandy Bridge
Support status
Unsupported

Clarksfield is the code name for an Intel processor, initially sold as mobile Intel Core i7.^[1] It is closely related to the desktop Lynnfield processor, both use quad-core dies based on the 45 nm Nehalem microarchitecture and have integrated PCI Express and DMI links.

The predecessor of Clarksfield, Penryn-QC was a multi-chip module with two dual-core Penryn dies based on Penryn microarchitecture, a shrink of Merom microarchitecture. The name of the direct successor of Clarksfield has not been announced. Arrandale is a later mobile processor but opens a new line of mid-range dual-core processors with integrated graphics.

At the time of its release at the Intel Developer Forum on September 23, 2009, Clarksfield processors were significantly faster than any other laptop processor,^[2] including the Core 2 Extreme QX9300. The initial laptop manufacturers shipping products based on Clarksfield processors include MSI, Dell/Alienware, Hewlett-Packard, Toshiba and Asustek.^[3]

Brand names

All Clarksfield processors are marketed as Core i7, in three product lines differing in thermal design power and the amount of third-level cache that is enabled. See the respective lists for details about each model.

Brand Name	Model (list)	L3 Cache size	Thermal Design Power
Intel Core i7	i7-7xxQM	6 MB	45 W
	i7-8xxQM	8 MB
	i7-9xxXM Extreme Edition		55 W

See also

• Intel Core i7
• List of Intel Core i7 microprocessors
• Penryn (microprocessor)
• Lynnfield (microprocessor)
• Arrandale (microprocessor)

References

1. Mobile Nehalem Chips May Come in Late 2009. PCWorld (2008-10-19). Retrieved on 2011-01-14.
2. Mobile Core i7 920XM, Clarksfield: Nehalem on-the-go – AnandTech :: Your Source for Hardware Analysis and News. AnandTech. Retrieved on 2011-01-14.
3. Intel Execs Introduce Clarksfield, Tout Mobility | News & Opinion. PCMag.com. Retrieved on 2011-01-14.

External links

• Intel – ARK – Products (formerly Clarksfield)