Nvidia currently dominate the sub £200 price bracket with some clearly definable parts but ATI are fighting back with the Radeon X1900 GT, a card aimed squarely at Nvidia's superlative 7900 GT. The X1900 GT is based on the R580 graphic processor but with one of the four quads disabled thus making it a 36 pixel shader part. Considering this, can it really compete against the 7900 GT when it comes down to raw performance? Read on to find out

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