I'm really puzzled at what Fuad + Chiphell is saying.Originally Posted by Calmatory
I doubt that they will be THAT fast. Otherwise they wouldn't need duals to be fast.
Well, whichever is faster, I don't case as long as the TDP stays below 95W, and price below $150.
He says the XT has a 512-bit bus while the PRO is 256-bit and GDDR3 (but the latter is more or less inconsequential, more impact on cost only)
Yes, yes, you could cut down busses at all, but the point is a 512-bit chip would NOT be small enough to be X2-ed. A 512-bit chip would ALSO likely need extra ram modules, considering I don't think GDDR5 has 64-bit modules on the cheap, or such 64-bit modules exist at all.
On the Chiphell side, nothing has been announced, except for the coolers. The RV770XT cooler seems to cater for a backplate on the other side of the PCB (all the cards who had that hairdryer cooler did), and cools a chip with a TDP of 150+W.
The RV770PRO cooler cools like the RV670PRO/3850 cooler, about the same TDP.
I don't think you can even increase TDP that much by ramping clocks! (On the ATI side, nVidia did it but it reeked of desperation) 55nm is mature, but yields for such a chip won't be good.
Coupled with the 480SP/800SP doubling rumor, there could actually be 2 chips, and none of them are clocked to hell-ish clocks.
Just my 2.5 cents.
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