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Intel Core i7 Clarksfield in Clevo W870CU Notebook E-mail
Written by TechReport   
Wednesday, 07 October 2009

Intel Core i7 Clarksfield in Clevo W870CU Notebook

Intel's Nehalem microarchitecture has been a revelation thus far. This latest "tock" in the chip giant's microprocessor development cycle debuted late last year in the form of Bloomfield-based Core i7 CPUs, whose blistering performance knocked everything else out of the high-end processor market. Then, less than a month ago, Intel trickled Nehalem down to the mainstream with more affordable Core i7 and i5 CPUs based on fresh Lynnfield silicon. As expected, these new processors outclassed the competition, broadening Nehalem's dominance of the market.

Up next: notebooks. At the recent Intel Developer Forum, and not even a month after Lynnfield burst onto the desktop scene, a mobile version of the chip dubbed Clarksfield was unveiled inside larger laptops and portable gaming rigs.

Clarksfield might as well have been called Lynnfield for laptops, because that's exactly what it is. Both squeeze 774 million transistors into a 296-mm² die area using Intel's high-k, 45-nm fabrication technology. They do come in different packages, though. Lynnfield uses LGA1156, while Clarksfield rides a 988-pin package dubbed PGA988A. Despite having fewer pins, PGA988A still measures 37.5 mm square, so it's actually the same size as LGA1156.

Given Clarksfield's roots, it's no surprise that the new CPUs based on it will be known as Core i7 mobile processors. Intel is making three models available to start: the Core i7-720QM and i7-820QM will serve the "quad-core performance" market while the Core i7-920XM fills in as the token Extreme Edition offering for those with deeper pockets. All three are quad-core designs, and they can all execute eight threads in tandem thanks to Hyper-Threading. TechReport


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