The buzz going around is the high-end refresh is g92x2...just like 7950GX2 was two 7900GT's.
A 8800GTS with a 256-bit bus and higher clocks. 512MB of ram is a given, although the GDDR3 instead of GDDR4 is a surprise. It sounds like a very efficient (size per die/performance/power/heat) design, as the 8800gts 320MB is a winner, and a smaller bus + more ram seems like a nice sweet spot. Put two of those together on 65nm, and I bet you could stay under or around the G80 power requirements (<225W). Hey, and 192 shaders (mad mad mul) @ 1750 = >1 teraflop. Granted, shaders may not be clocked that high.
A high-end part would be 1GB of ram.
What would it compete with you ask? Why a RV670x2 of course...
It makes sense to me as the GPU companies have alluded to going to MCM next-gen. This may be testing the waters, or perhaps a taste of things to come. Sure, there could be G90/R680...but we hear much more about these parts, and now it seems the pairing of them is the next likely high-end.
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