Quote Originally Posted by saaya View Post
looking at the amd perf slides i have to say... i expected more?
the 5870 beats a 295 by a long shot in several games, but where it matters, where you really need the extra fps, ie far cry2, crysis, cod... its 20% slower than a 295...
and the 5850 beats a 285 for sure, but not by that much, and again where you really need the extra perf its about the same as the 285...
upgrading from a 285 to 5850 doesnt make sense i think, upgrading to a 5870 maybe... but from a 295 to a 5870 again doesnt seem to make sense, on the contrary...

im really surprised that doubling every resource in the gpu, tweaking it and clocking it really high... the performance is still not notably higher than that of the 285, which is an oced 280, which is 18 months old...

looking forward to propper reviews though, who knows how good those amd benchmarks are, probably all with amd cpu at stock speed, so not really that useful and painting quite a diferent picture
I think you should take a more detailed look to the performance comparisons (particularly the ones with numbers and resolutions and all): HD5850 is beating GTX285 in nearly all games (including STALKER CS and Crysis Warhead), some by more, some by less, so no way that the HD5870 is not noticeably faster than GTX285.

On the other hand, in the comparison between HD5870 and GTX295, you can see that STALKER CS runs 38.4 vs 40.5 without AA and 24.2 vs 22.3 with 4xAA (so no 20% lower, even higher with AA) and Crysis warhead is 51.5 vs 53.6 and 43.6 vs 48.5 respectively (~3% and ~11% performance difference respectively) so...

In general, the difference between HD5850 and GTX285 (favorable to the Radeon) is equal or greater than the difference between GTX295 and HD5870 (favorable to the GeForce, if we don't count 8xMSAA results). So we could say that GTX285 is trading blows with HD5850 (favoring the ATi card) and GTX295 with HD5870 (favoring the NVIDIA dual card).

You can take a look to this post if you want to examine better the leaked benchmarks: http://www.xtremesystems.org/forums/...&postcount=892

Of course, you should note that maybe a change from GTX295 to HD5870 is not so greatest performance wise (probably consumption, heat and price will be another thing), the same way that a change from HD3870 to HD4650 is not. If you want to see if changing from a dual high end chip configuration to the new generation is a gain, you should wait for HD5870 X2, or make an idea with a HD5870 CrossFire (wich here you can see how it scales, destroying a GTX295 SLI -as it's to expect given that the NVIDIA configuration is a 2x2=4 chips scaling, so much harder to scale).