The X850XT PE and X800XL are two new latest-gen graphics cards from Canadian GPU manufacturer extraordinaire ATI. Priced at different ends of the GFX market price range, one retails for over 600USD, while the other settles for a more approachable 300USD. As well as reviewing both cards in full detail, we're going to be keeping a special eye to whether the increased performance of ATI's 850 flagship model is worth the rather steep price difference.