It looks like nVidia brought a gun to a knife fight when you compare the performance of the latest cards from both ATI and nVidia. The GTX 275 just outperformed the HD 4890 at every turn, with the exception being Crysis Warhead where the GTX 275 was beaten in all four resolutions. In the GTX 275 you have what equates to half of a GTX 295. You get the 240 shader processor cores of the GTX280/285 with the memory subsystem from the GTX 260. Surprisingly, this combination offers exceptional performance across just about every game tested with this card. In fact, out of 36 tests run, the GTX 275 outright won the resolution in 30 out of 36 tests and was equal to or better than the HD 4890 in 32 out of 36 tests. Pretty much a big win for the GTX 275. The cooling on the GTX 275 is the reference cooler from nVidia. It does an admirable job of keeping the big GT200 core relatively cool when the drivers are controlling the cooling with load temperatures of 88 degrees Celsius under load. Turn the fan speeds up and you are welcomed with some noise to let you know the fan is there but it isn't nearly as loud as the ATI cooling solution. When the fan is spooled up the load temperatures take a drop down to 64 degrees Celsius.