Mantle MIGHT be change,but then again if it supports only one company,it wont be - many examples already
And with amd reluctance and poor programmers they have, i doubt they have man power to make Mantle what they advertising it to be,so take all with pinch of salt - if you think Nv will just look how amd trying to make more than them,you wrong
Not many ppl will switch to new gpus for sake of 1 game,when older cards will do the same basically - it will be cheaper to get X1 or PS4 for that price,even tho FPS should be played on PC,but then again sales not laying
I am very much doubt Mantle will make such big difference - we had soooo many promises from amd...why they couldnt show Mantle at that AUDIO press conference? December isnt to far,they deffo should have it at least on Beta atm
If amd really show some performance gains with Mantel,there will be some app from Nvidia also,if they not working on it now ( iwont be surprised),so i wont be worried about those things
If you can get faster gpu for same price,why would you buy slower one ? Green,red - doesnt matter,what matter is what you can get for ya money - and im always trying to get best deal possible for that moment,and at this point looks like GTX780 is best card,it might change of course (and i wish it would) but atm it is how it is.
No change for me to new gpu's,at least not how it all looks now,and if prices is ~500 for 290X,i might just even skip this gen and wait for 20nm