Performance recapAlthough individual game results are worth looking at, we have calculated a performance index based on all tests with the same weight for each game. Mafia II is included with the scores obtained without GPU PhysX effects.
We attributed an index of 100 to the GeForce GTX 460 1 GB at 1680x1050:
Hold the mouse over the graph to view the cards by performance at 1680x1050.
It’s interesting to see that AMD and NVIDIA are on an equal footing in several market segments: GeForce GTX 460 1 GB and Radeon HD 6850, GeForce GTS 450 and Radeon HD 5750… and GeForce GTX 550 Ti and Radeon HD 5770.
Another thing that comes out in this analysis is a trend we’ve noted with the GeForce 400s and 500s: they suffer a little less when antialiasing is activated, but a little more at higher resolutions, which is explained by the reduced fillrate given by their internal architecture.
Although the GeForce GTX 550 Ti gives a nice gain over the GeForce GTS 450, of 19% without MSAA and 23% with, this isn’t enough to bring the GeForce GTX 460 into range – the GeForce GTX 460 1 GB still has an advantage of almost 30%! The GeForce GTX 560 Ti gives 70% more than the newcomer in terms of performance, which creates quite a gap in the new NVIDIA range.
The little GeForce GTX 460 SE also gives higher performance than the GeForce GTX 550 Ti. Moreover, it equals the GeForce GTX 460 768 MB with antialiasing which is penalised by a lack of memory in a few cases.
Note finally that the Asus GeForce GTX 550 Ti DirectCU TOP gives a gain of almost 7% on the reference card with a GPU clock that is 8% higher. As the memory clock hasn’t been increased, the Asus has just a 5% gain with MSAA 4x.