Produced From 2009 to present
Designed by Intel
Max. CPU clock rate 1.60 GHz to 2.00 (turbo up to 3.2) GHz
Min. feature size 45 nm
Instruction set x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2
Microarchitecture Nehalem
CPUID code 106Ex
Product code 80607
Cores 4
L2 cache 4x256kb
L3 cache 6 to 8 MB
Application Mobile
Brand name(s)

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 Core 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

As of September 2009, 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


  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. Retrieved on 2011-01-14.

External links

  • Intel – ARK – Products (formerly Clarksfield)