With a GPU cut down in exactly the same way as the one used for the GeForce GTX 460, the GeForce GTX 560 only differs by its higher clocks: +20% for the GPU and +11% for its GDDR5 memory, which is identical to that used for the GeForce GTX 560 Ti.
With a GPU clock up by 15%, the processing power of the Asus DirectCU II TOP is very close to that of the GeForce GTX 560 Ti, as well as a slightly higher memory bandwidth.
For this test we decided not to include H.A.W.X. and Crysis Warhead, as H.A.W.X is too light and Crysis Warhead covers the same ground as Crysis 2. Need for Speed Shift 2 Unleashed has however been introduced. The tests were carried out at 1920x1080 with and without MSAA 4x. All the graphics options were put at high but not maximum in the most demanding games.
We also decided no longer to show decimals in game performance results so as to make the graph more readable. We nevertheless note these values and use them when calculating the index. If you’re observant you’ll notice that the size of the bars also reflects this.
The Radeons and the GeForces were tested with texture filtering at the “quality” setting. All the Radeons were tested with the Catalyst 11.5 driver and all the GeForces were tested with the beta 275.20 drivers which give small gains in several games. Note that these drivers suffer from a bug which limits performance in some cases when the monitor isn’t being used in native resolution. During some scenes in some games, there’s a limitation with the refresh rate. Without having been able to confirm this, it looks as if this phenomenon comes about when the fps is close to (10, 15%) the refresh rate. As NVIDIA has revised the upscaling part of its drivers, we imagine that the bug is linked to this. We relaunched all the tests on a screen at native resolution to get around this problem.
Intel Core i7 980X (HT deactivated)
Asus Rampage III Extreme
6 GB Corsair DDR3 1333
Windows 7 64 bit
Forceware 275.20 beta