gamegpu tested with 310.70 beta and 12.11 beta 11. yet the HD 7970 Ghz was 10% faster than GTX 680 at 1080p. 44 fps at 1080p on HD 7970 Ghz is definitely playable. At the higher 1600p resolution and 8x MSAA settings its not playable. in the resolution that counted most and at the highest IQ settings the HD 7970 Ghz was the clear winner. read the hardocp preview properly. at 1080p the HD 7970 Ghz CF was faster and as smooth as GTX 680 SLI. at 1440p HD 7970 Ghz CF had stuttering. its probably a driver issue which should be resolved soon. HD 7970 Ghz was faster as a single GPU.