Originally Posted by BizzareRide
Their entire schedule has shifted by about 6-12 months, so don't expect Maxwell until 2014.
The GK110 silicon will make for a new series of cards next year, along with a GK104 refresh to take up the "bottom end".
Based on what? GK110 will not only have a 384-bit bus, but the memory controller will be improved.
Expect ~300Gb/s stock and ~350Gb/s over clock... This is I/O bandwidth. Internal bandwidth should be several times higher. And I believe shaders have nothing to do with bandwidth, its the ROPs that matter, and we have no evidence that the ROPs will be limited internally.
It'll be at least 50-70% faster than a GTX 680.
GK104 is mainly liimited by it's ROPs, the 256-bit memory bus is balanced quite nicely so that it provides enough bandwidth in most cases to feed those 32 ROPs.
GK110 will have 50% more ROPs than GK104.
GK110 will have more than two times the amount of transistors, it's very likely it'll have to deal with a slightly slower clock speed, about 90% compared to the GTX 680 is where I'm thinking.
50% more ROPs at 90% speed will mean an increase in performance by 35%, and that's assuming perfect scaling with more ROPs (the GTX 660 Ti points to Kepler not really scaling that well with more ROPs.)
So the most likely estimate for the GK110 in terms of gaming performance will be in the ballpark of 30-35% faster than the GTX 680. It will, on the other hand, crush 3DMark11 scores as 3DMark11 is the only bench that actually scales well between the GTX 670 and 680 in terms of theoretics.