QUOTE(ikanayam @ Sep 27 2008, 04:39 PM)
Yeah, for memory bottlenecked stuff it's going to be pretty sweet. But the AF performance drop should be a bit moar pronounced in this one because the number of filters is now equal to the number of interpolators lol. Ironically, this is the original RV770 design target. Poor nvidia (oh the pun)

Hey, it's more 3DMark 06-ish too!
If this was RV770, it would "have the performance of a 8800GT". Maybe they leaked their old estimates.
QUOTE(AMDAthlon @ Sep 27 2008, 05:11 PM)
I still wonder why they din use GDDR4 for HD4850 ...
Obsolete. I think it's pretty nifty, but ATI thinks otherwise. Probably because of the cost- at that GDDR4 cost, you'd be better off using GDDR5 anyway.
Plus, the main reason the 3870 was hard to price-drop was the GDDR4 component. Newer "custom" 3870s used GDDR3 with minimal performance hit. For the 4800s it's different, but GDDR4 no longer seems to be a priority for both vendors (and memory chipmakers) anymore.
You can see it as a transitionary step to GDDR5, IIRC quite some of the specs are same (different from GDDR3)
This post has been edited by X.E.D: Sep 27 2008, 06:30 PM