Despite claims that its X800 architecture scales down to eight- and four-pipe designs, the low end of ATI's PCI Express Radeon X-series is dominated by last year's technology. Not that there's anything wrong with last year's technology, though. The X600 and X300's RV360 roots leverage a proven rendering pipeline, full 24 bits of pixel shader precision, and the most gorgeous antialiasing around. Other than PCI Express support and a slight memory clock boost for the XT, the X600 line doesn't offer much over ATI's existing Radeon 9600 series products. However, the X300 is a significant improvement over ATI's previous value workhorse, the DirectX 8-class Radeon 9200 series. ATI expects the Radeon X300s to be twice as fast as the 9200s, which is a pretty significant leap when you add DirectX 9-class shaders to the equation
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