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<Why CPUs Aren't Getting Any Faster ⁄ >




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The Central Processing Unit (CPU)--the component that has defined the performance of your computer for many years--has hit a wall.

In fact, the next-generation of CPUs, including Intel's forthcoming Sandy Bridge processor, have to contend with multiple walls--a memory bottleneck (the bandwidth of the channel between the CPU and a computer's memory); the instruction level parallelism (ILP) wall (the availability of enough discrete parallel instructions for a multi-core chip) and the power wall (the chip's overall temperature and power consumption).



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