TSMC 20nm is not ready till Q2 2014. 20nm graphics cards can be expected to release in June or July 2014. read TSMC Q1 2013 earnnings call transcript
here is the excerpt from the call
Steven C. Pelayo - HSBC, Research Division
What quarter will be the first few percentage of revenues will come from 20-nanometer for TSMC?
Morris Chang - Chairman and Chief Executive OfficerWhat quarter will be the first 2% quarter?
Lora Ho - Chief Financial Officer and Senior Vice President of Finance
Well, based on our current estimation, it will be roughly second quarter 2014
for comparison TSMC 28nm started production in Q4 2011 with 2% of total production volume at 28nm in that quarter
TSMC has also promised that total 20nm production in 2014 will be more than 28nm production in 2012
so its late Q2 2014 for 20nm followed by a very steep ramp in H2 2014. so Maxwell GM104 and AMD 20nm can be expected in late Q2 or Q3 2014.
HD 9970 should be a 28nm chip around 420 - 440 sq mm . lots of rumours. my guess is 2560 sp, 4 or 8 ACE, 3 or 4 geometry / raster engines, 48 ROP and clocked at 1 ghz. should end up roughly 30% faster than HD 7970 Ghz. anything less would be a failure for AMD as Nvidia has still not released a fully enabled GK110 with 2880 cuda cores aka Titan Ultra.Edited by raghu78 - 7/9/13 at 9:22pm