Mantle's greatest benefit is in overcoming the CPU drain from the overhead of higher-level APIs.
A fast CPU with a lot of cores will get relatively little benefit, whereas a slower processor with only two cores can see dramatic improvement.
Evidence of what? We've been stuck at 28nm forever now, and it's been a huge issue (notice how upgrades have been coming slowly the past few years—everybody was banking on a shrink that never came, so they had to stick with old designs or retool their new designs for the old process).
Everything is in limbo until the new process is ready, and we either have mostly old designs with slight improvements (AMD) or pseudo-new designs that aren't as good as they were supposed to be (Nvidia).
Next generation may not automatically be better, but it should be the first in a while that has the capacity to truly be new (the shrink allows either for more complex hardware or smaller, more efficient hardware, or more likely both).
Interesting.
Although from the sound of things, it seems like a very similar situation with my SSD. I just recently bought a Samsung 850 Pro. I knew that PCI-X was the next big thing, but I didn't want to have to wait for the real breakthroughs to arrive, so I decided to go with the top of the line drive with the 10 year warranty. Sure I likely won't need it, but I wanted to not have to worry about it. I could have gotten a cheaper alternative. But it's likely this will be the last SATA drive I ever buy. So I wanted the best.
I'm wondering if the GTX 980 might fill the same role for me. Though I will likely wait until Black Friday to decide.
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