Performance in First-Person 3D Shooters
Aliens vs. Predator
Quite expectedly, the Radeon HD 6950 is in no way affected by the loss of half the graphics memory, except for its lowered price. The PowerColor performs confidently both at the default and overclocked frequencies. When overclocked, it can even challenge the more expensive GeForce GTX 570. The game is playable at every resolution except for 2560x1600 which calls for a higher-class graphics card.
Battlefield: Bad Company 2
There is no difference between the two Radeon HD 6950 models, which indicates that there is no need in the larger amount of graphics memory. The GeForce GTX 560 Ti is ahead but not as much as to be definitely preferable to the Radeon HD 6950, especially as the latter can be accelerated through overclocking.
Call of Duty: Black Ops
This game isn't a problem for today's graphics cards but we can see that the GeForce GTX 560 Ti has the lowest bottom speed whereas both versions of Radeon HD 6950 maintain it at a high level even in the Ultra-HD modes. There is even no need to overclock them.
This is the only test so far in which we can see any difference between the two versions of Radeon HD 6950. However, the difference is small and we see it only at 2560x1600 where both versions are too slow. The PowerColor card looks preferable to the GeForce GTX 560 Ti because ensures a playable frame rate in the Full HD mode. You can have the same performance with the GeForce GTX 570 but it would cost you more.
This game is tested with the tessellation option turned on.
Overclocking is unrewarding for our Radeon HD 6950 in this game, yet it is only inferior to the GeForce GTX 570. 1600x900 is the only resolution where we can see a difference, so there is no need to buy the more expensive card. Take note that the bottom speed fluctuates wildly when the tessellation option is turned on.
S.T.A.L.K.E.R.: Call of Pripyat
This game runs with enabled tessellation.
We don't gain much from overclocking, especially as the Radeon HD 6950 copes with the game at 1920x1080 even at its default frequencies. Together with the GeForce GTX 560 Ti, the Radeon HD 6950 1GB seems to be the best performance-mainstream graphics card available today.