Radeon HD 7970 GHz Edition magically emerges from the mists
 

Six weeks have passed since AMD launched its Radeon HD 7970 GHz Edition graphics card. The new flagship offers higher default clock speeds than the standard 7970, plus a tweaked PowerTune implementation that's better at maintaining those speeds and capable of pushing them even higher when thermal headroom permits. At the product's introduction, AMD told us the 7970 GHz Edition would start selling at the end of June and be widely available in early July. However, we're into August now, and the card is virtually absent from online stocks.

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