Quote:
Originally Posted by
iLeakStuff
Yeah I dont get it either. Unless they improved core performance by a massive amount
AMD has had extreme difficulty getting the performance out of GCN that it can theoretically provide. Something like 75% effective peak.
If they pushed that to 90% effective peak with a 10% higher average utilization while improving core resources, reducing bandwidth requirements per frame (via compression), and with 20% or so higher clocks... then I could see them matching Fury/X with nearly half the cores.
Thing that gets me... I don't think we're seeing the 480X at all - I think we've only seen 480. There could be 2560SPs on Polaris 10, not 2304.
That would suggest:
67C0 is the code for the full chip...
67DF is the cut-down version...
67DF:C4 may be GDDR5
67DF:C7 may be GDDR5x
In that case, C7 has more bandwidth available - which enables it to reach Fury (barely) at the same clocks as C4 which can't reach 390X.
Polaris 10, AFAICT, is the largest chip ever made on Samsung's 14nm at 232mm^2, so AMD will probably be selling the #2 GPU hard - and will certainly have more cut-down dies on hand.