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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.
| General information | |
|---|---|
| Launched | 2009 |
| Discontinued | 2012 |
| Marketed by | Intel |
| Designed by | Intel |
| Common manufacturer | |
| 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 |
|
| Memory (RAM) |
|
| Package |
|
| Socket |
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| Products, models, variants | |
| Brand names | |
| History | |
| Predecessor | Penryn-QC |
| Successor | Sandy Bridge |
| Support status | |
| Unsupported | |
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]
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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 |
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