Originally Posted by skupples
What? This falls in line with pretty much all reliable speculation for the last 3 months.
NVidia pushing a 28nm 8xx, with a 20nm 9XX coming in 2015.
I think some of this speculation is even in this exact thread, pages & pages ago. GoldenTiger & I discussed it @ some point in the thread.
This may be new story, but similar stories have been dropped many times. 20NM is causing serious issues, this has been known for awhile.
There has been that speculation, but I for one don't count it as reliable. It makes much more sense to me that 20nm = 800 series, period. If there were going to be a full Maxwell line at 28nm, we'd be having it right now,
two years after the 680 and one year after the 780. Instead, we have one deliberately underpowered example of Maxwell that nonetheless demonstrates some damned exciting things for both power efficiency and area efficiency to keep the discussion about Maxwell going while they wait for 20nm to shake out.
There has been no
credible source saying that 800 series won't be 20nm. All we have is speculation based on the delays on the 20nm manufacturing side, with the extrapolation that if Nvidia were to stick to their original roadmap timetable, that they would be forced into 28nm Maxwell as the 800 series. It makes far, far, FAR more sense to me that they do in fact give a damn about having a significant performance increase between major generations, and are more willing to let the release schedule slip due to manufacturing issues than they are to release a full line of "Well, it's sortof an upgrade, but not really what you're used to, but you're fine with that anyway right?"
800 series will be 20nm. We may get more 28nm in the 700 series as the year goes, but we really have no reason to believe that they'll release another
entire 28nm line six to eight months behind their usual schedule. The only justification for a schedule slip that severe is that they're waiting for something big, and that something big is 20nm.