Gainward GeForce GTX 560 Ti 1024MB "Golden Sample" is a very nice graphics card in its class that competes well even with Radeon 6950 2GB. However, there's also the cheaper Radeon 6950 1GB, so you should watch prices and make you choice based on those.
The card is an excellent solution for overclockers, because factory overclocking isn't the limit. They've probably increased core voltage a bit, because the card works fine at as much as 1 GHz core clock rate.
