What do you do when you have a succesful high-end video card and your main competitor suddenly introduces a card that's slightly faster? You go back to the drawing board and think of a way to squeeze more performance out of your existing products. That's exactly what AMD did with the Radeon HD 7970, the end result of which is introduced today in the form of the Radeon HD 7970 GHz Edition. It's all in the name: this is a Radeon HD 7970 with a 1GHz GPU with turbo mode.
AMD introduced the Radeon HD 7970 at the end of last year, and it was received very well. It was faster, cheaper and had more features than Nvidia's GeForce GTX 580. It kept the number one spot until March, when Nvidia launched the GeForce GTX 680. Originally intended as a mid-range model, the card was actually 10 percent faster than the Radeon HD 7970. Not a huge difference, but enough to shift the scales in favour of Nvidia in terms of sales.
AMD's response a few months later is the Radeon HD 7970 GHz Edition that's launched today. It turns out the Tahiti chip's potential had not been fully explored yet.