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The size of the cache bolsters Intel's claims that the chip will be one of the top performing mobile chips in the world when it debuts. More cache typically leads to higher performance. The chip will be introduced at speeds of 1.6GHz, 1.5GHz, 1.4GHz and 1.3GHz, slower than the Pentium 4. The larger cache, though, will likely narrow the performance gap created by the differences in speed.