| Clarksfield | |
| Produced-Start: | 2009 |
| Produced-End: | 2012 |
| Slowest: | 1.60 |
| Fastest: | 2.13 (turbo up to 3.33) |
| Size-From: | 45 nm |
| Soldby: | Intel |
| Designfirm: | Intel |
| Sock1: | Socket G1 (rPGA988) |
| Pack1: | Reduced pin grid array (rPGA) |
| Brand1: | Core i7-7xxQM |
| Brand2: | Core i7-8xxQM |
| Brand3: | Core i7-9xxXM |
| Arch: | x86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2 |
| Microarch: | Nehalem |
| Numcores: | 4 |
| Cpuid: | 106Ex |
| Code: | 80607 |
| L1cache: | 256 KB (64 KB per core (32 KB instructions + 32 KB data)) |
| L2cache: | 1 MB (256 KB per core) |
| L3cache: | 6 to 8 MB |
| Application: | Quad-core mobile Extreme mobile |
| Manuf1: | Intel |
| Dmi-Slowest: | 2 |
| Amountmemory: | Up to 8 GB |
| Memory1: | Up to DDR3-1333 with 21 GB/s bandwidth |
| Predecessor: | Penryn-QC |
| Successor: | Sandy Bridge |
| Support Status: | Unsupported |
| Instructions: | MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2 |
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 nmNehalem 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]
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 | 6 MB | 45 W | |
| 8 MB | |||
| 55 W |