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Speed Comparison: DDR400 Vs. DDR333 Vs. DDR266

Unstoppable: DDR400 vs. Rambus
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This graph shows the performance of various memory modules, each of which was used in an identical system configuration. All of the measurements are based on the SiS 645DX chipset.

The MPEG-4 encoding test shows just how the performance depends on the memory that is used: together with DDR200, the test platform achieves 22.8 frames per second, but when DDR400 is used, the performance increases by almost 50% to reach 31.8 fps. The PC Mark 2002 benchmark delivers additional figures to reflect the increased bandwidth of DDR modules with a faster memory clock.

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