Quote Originally Posted by LordEC911 View Post
Where does this 40% increase keep coming from? Why are we comparing Tahiti clocks and performance? Hawaii is a different ASIC with an evolved/tweaked architecture.


Average is/was at least +20% over 5870. Ibiza performance targets got leaked and mixed in with the Cayman leaks...
I have apologized about that on numerous occasions.


We will have to wait and see. There are numerous optimizations/efficiency gains that have been added to GCN since Tahiti was released.


That is great, you do that.


~30% more performance with a 51% larger die. GK110 isn't exactly holding a mm2/performance lead.
40% over a ghz edition is what is needed for Hawaii to beat titan and not simply be comparable.

Titan chips are pretty much bad gk110 chips. They usually range in the 60-74% range ASIC range and are not fully enabled. They are likely the left over parts from the pro market.

Take a fully enabled gk110 and take a better asic you could see a 50 percent performance gain over a ghz edition while pushing the chips similarly hard(a fully enabled gk110 vs tahiti xt). EVGA superclocked Gtx 780 with ACX coolers already have close to a 40% increase in performance over a 7970 ghz edition. And this is with 25% percent of gk110 cores disabled(2304 vs 2880).

Gk110 is so under-clocked its not even funny(when was the last time this big of a chip was able to top performance per watt charts). Them still using a super quiet blower fan vs an open air for such a large chip means they have a lot left in the tank.