Quote Originally Posted by LordEC911 View Post
Actually with AF turned on it should perform better than a 4890 since interpolation is done in the shaders now rather than the 32 units of 48x0 series had.

Remember both the 4870 and 4890 had more than enough bandwidth and the 4850 was the only chip that was limited by bandwidth. With these 5ghz chips that seem to be regularly overclocking to 5.2-5.3ghz, we are looking at +83GBps in an overclocked situation which is a +30% increase over the 4850's 63.5GBps. Cypress and Juniper also use their bandwidth much better than the 48x0 series thanks to improvements with certain compression algorithms and other such tweaks.
the new texture filtering algorithms definitely come at a high bandwidth cost. thats the main bottleneck in texture filtering anyways. fixed function would not have a been much faster. i dont think that these cards will have high binned memory either. it depends on the manufacturer in the end.