That is, until AMD fires back with the new Radeon HD 6000 series, which is rumored to ship in October. Apparently, the 6700 cards will appear first, and they would presumably hit that midrange spot that would appeal to most gamers. The pair, code-named Barts XT and Barts Pro, will replace the 5770 and 5750, and supposedly come with a 256-bit memory interface instead of their predecessors’ 128-bit interface. If the 6700 cards outperform the GTX 460 — and early benchmarks are showing the Radeon HD 6870 smoking the GTX 480 — then Nvidia’s advantage could be short-lived.
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