The time was ripe therefore for a response from nVidia and the result is the 6800 GS. Let’s get this out of the way straight away. Despite having the same five vertex shaders and 256-bit memory interface, the GS has 12 pixel pipelines, four fewer than the 6800 GT. Yet, nVidia claims that the GS is faster than the GT. How is this possible? This is due to the GS possessing much greater clock speeds, with the reference card running at 425MHz core and 1GHz memory, compared to 350MHz, 1GHz for the standard GT. But clocks are much cheaper than pipelines and the 75MHz increase ensures that it can compete with the GT despite the reduced number of pipelines.



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