1333MHz FSB Core 2 Duos benchmarked

The folks over at HKPEC have managed to get their hands on some unannounced Core 2 Duo processors with front-side bus speeds of 1333MHz instead of 1066MHz. We heard rumors about these chips last October, and the processors tested by HKEPC have the same specs. This rumored 1333MHz FSB Core 2 Duo lineup, which will supposedly hit stores in the third quarter of this year, includes models E6850, E6750, and E6650, which have respective clock speeds of 3GHz, 2.66GHz, and 2.33GHz with 4MB of L2 cache.

In its evaluation, HKEPC benchmarks the E6850 and E6750 models in a variety of apps including Cinebench 9.5, DivX 6.2, LAME, PCMark 2005, WinRAR, Battlefield 2142, and Doom 3. The Core 2 Duo E6850 has a definite edge over the existing Core 2 Extreme X6800, but it does also have a slightly higher clock speed (3GHz vs. 2.93GHz). At the same speed, the faster front-side bus seems to matter less. According to HKEPC's tests, the 2.66GHz Core 2 Duo E6750 is only 1.38% faster on average than the 2.66GHz Core 2 Duo E6700. Some real-world apps, like Far Cry, give the E6750 a slightly bigger lead, but there seem to be few major differences between the two chips outside of some synthetic tests.

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