Today TweakTown are taking a close look at GeCube's new ATI Radeon X800XL graphics card with 512MB of GDDR-3 memory onboard. After looking at the package and the card, we're comparing the 512MB model against a 256MB model to see what type of differences we have in our usual array of gaming benchmarks. Is it worth spending the extra money for the additional 256MB of memory or not? Read on and we'll try and provide some answers.