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It is clear at the moment that neither Intel nor AMD reject the idea to increase in cache volume in their 45 NM processors. The intel processors generation nehalem can acquire 12 MB cache in the second level, while AMD processors generation shanghai will obtain 6 MB cache in the third level. In this case given processors will continue the use the memory of type SRAM, although both companies look at alternatives: Intel studies the technology of memory FBC, and AMD company get licence in technology Z -RAM.
As reports associate company IBM examines the possibility to use the cells memory of type eDRAM (Embedded DRAM) for creating the cache of its processors. According to the estimations of company representatives , the passage to the use of eDRAM will make possible to increase the cache volume three times, and the performance of processors will rise two times. In comparison with memory of type SRAM, the memory eDRAM possesses larger speed and suffers less from the leakage currents. Problem consists in the fact that to use eDRAM and the utilized now for the production of processors technology SOI is not so simple. However, specialists IBM express confidence in the possibility of association .
It is expected that to use eDRAM for creating cache of processors IBM will be in 2008, when the production of 45 NM processors is mastered. If the current generation of processors IBM has 8 MB cache, then the following can obtain from 24 to 48 MB cache. It is necessary to say that IBM released servers processors, and therefore it is complicated to forecast, what cache volume could possess desktop processors with eDRAM.
It is known that IBM is technological donor of AMD; however, the representatives of this last refused to give commentaries with prospects of using eDRAM in their processors . AMD more greatly sympathizes with technology Z -RAM. Time will show, which the solutions will prove to be more viable for AMD. Related Products :
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