Originally Posted by iamhollywood5
if AMD decides go stick with 28nm, does anyone think they'd be likely to just increase the die size to fit more than 2560 SPs? Unless they increase die size or go with 20nm I can't see how they'd come up with anything much better than the GTX 780.
If it's 28nm, which does seem to be the most likely scenario, Volcanic Islands will definitely be a bigger die than the 7000 series for each respective category. I'd expect the flagship part to be faster than the 780 and be priced in the $600+-50. I also expect AMD will basically do what Nvidia did with their latest refresh and box in the 700 series by speccing the 2nd highest tier to go head to head with the 780 and be priced ~$100 below flagship.
Radeon 7970 is 365mm2
Nvidia GK110 (780 and Titan) is 561mm2
Adding 30-40% to the die size target for the 7970 replacement would still have it 10-15% smaller than GK110. Similar to the 5000-6000 series same node transition they have to up the die size budget in order to provide expected performance boosts, the maturity of the node means they can do this without increasing retail pricing too drastically.
The 6900 series was a ~15% increase in die size but also involved a hefty tweak to the underlying architecture. Personally, I think Volcanic Islands will weigh in with more of a die increase perhaps not as much as 30-40 but at least in the 20-25 range. I'd expect they will save the heavy performance targeted GCN R&D for 20nm.Edited by Vesku - 8/9/13 at 1:55am