I always felt HA's benchmarks were probably somewhat telling of reality (despite my parody page and his lower than usual numbers) and if you extrapolate Sander's benchmark percentage differences with the new info. about these cards (higher core + new drivers) then the percentage differences he listed between the 7800 GTX and X1800XT aren't too far off in some cases. Because of this information, I wasn't expecting much out of the R520 and while it did do nicely in some games like BF2 (my fav. game) and FEAR (overrated game) the rest of the results were just so-so. Where the disappointment really sets in is when you think about how most (or was it all?) these reviews used a standard clocked 7800 GTX against the R520. Most people here are probably well aware that the retail GTX cards are clocked at 450 and above now for the core and 1300 memory so if you take that into account, the GTX would likely have closed the gap in BF2/FEAR and widened it in other games where it was already leading.
My biggest disappointment with this card is the appalling OpenGL performance. Given that this is a fairly new and advanced architecture I was hoping ATi would start fresh with OpenGL and catch up to nVidia but alas that wish did not materialize. Not only is ATi behind, but it gets thorougly beaten by the 7800 series in all OGL titles. So for those of us that are avid id engine fans and waiting on Quake 4 and Quake Wars (I'm highly anticipating this title), the GTX/GT are the only choices for us since ATi isn't even a worthy competitor.
As for IQ enhancements, DriverHeaven (aka ATi Heaven) noted that the HQ AF provided no noticeable real world IQ gains so that seems like a fairly useless feature. I have yet to see any HDR+AA performance figures so can't say much about that yet although ATi's HDR figures aren't any better than the 7800 GTX thus far so I'm not expecting much. Adaptive AA is nice but still doesn't look better than TSAA so they're about even there with nVidia still taking the IQ win with 8X+SS.
Lastly, factor in price, availability, driver refinement, SLI flexiblity and availability of nforce 4 mainboards everywhere and we see that ATi just falls flat on its face. Well here's hoping for a better next round - ATi needs to get that 32 pp R580 out the door ASAP if it wants to remain competitive.
My biggest disappointment with this card is the appalling OpenGL performance. Given that this is a fairly new and advanced architecture I was hoping ATi would start fresh with OpenGL and catch up to nVidia but alas that wish did not materialize. Not only is ATi behind, but it gets thorougly beaten by the 7800 series in all OGL titles. So for those of us that are avid id engine fans and waiting on Quake 4 and Quake Wars (I'm highly anticipating this title), the GTX/GT are the only choices for us since ATi isn't even a worthy competitor.
As for IQ enhancements, DriverHeaven (aka ATi Heaven) noted that the HQ AF provided no noticeable real world IQ gains so that seems like a fairly useless feature. I have yet to see any HDR+AA performance figures so can't say much about that yet although ATi's HDR figures aren't any better than the 7800 GTX thus far so I'm not expecting much. Adaptive AA is nice but still doesn't look better than TSAA so they're about even there with nVidia still taking the IQ win with 8X+SS.
Lastly, factor in price, availability, driver refinement, SLI flexiblity and availability of nforce 4 mainboards everywhere and we see that ATi just falls flat on its face. Well here's hoping for a better next round - ATi needs to get that 32 pp R580 out the door ASAP if it wants to remain competitive.