| General information | |
|---|---|
| Launched | 2009 |
| Discontinued | 2012 |
| Marketed by | Intel |
| Designed by | Intel |
| Common manufacturer | |
| CPUID code | 106Ex |
| Product code | 80607 |
| Performance | |
| Max.CPUclock rate | 1.60 GHz to 2.13 (turbo up to 3.33) GHz |
| DMI speeds | 2.5 GT/s |
| Cache | |
| L1cache | 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 |
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| Memory (RAM) |
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| Package |
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| Socket |
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| Products, models, variants | |
| Brand names | |
| History | |
| Predecessor | Penryn-QC |
| Successor | Sandy Bridge |
| Support status | |
| Unsupported | |
Clarksfield is the code name for anIntel processor, initially sold as mobileIntel Core i7.[1] It is closely related to the desktopLynnfield processor, both use quad-core dies based on the45 nmNehalem microarchitecture and have integratedPCI Express andDMI links.
The predecessor of Clarksfield,Penryn-QC was amulti-chip module with two dual-core Penryn dies based onPenryn microarchitecture, a shrink ofMerom 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 theIntel 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 includeMSI,Dell/Alienware,Hewlett-Packard,Toshiba andAsustek.[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 | i7-7xxQM | 6 MB | 45 W |
| i7-8xxQM | 8 MB | ||
| i7-9xxXM Extreme Edition | 55 W |