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Clarksfield (microprocessor)

Clarksfield
General information
Launched2009
Discontinued2012
Marketed byIntel
Designed byIntel
Common manufacturer
CPUID code106Ex
Product code80607
Performance
Max. CPU clock rate1.60 GHz to 2.13 (turbo up to 3.33) GHz
DMI speeds2 GT/s
Cache
L1 cache256 KB (64 KB per core (32 KB instructions + 32 KB data))
L2 cache1 MB (256 KB per core)
L3 cache6 to 8 MB
Architecture and classification
ApplicationQuad-core mobile
Extreme mobile
Technology node45 nm
MicroarchitectureNehalem
Instruction setx86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2
InstructionsMMX, 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
Products, models, variants
Brand names
History
PredecessorPenryn-QC
SuccessorSandy 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

References

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