Originally Posted by 47 Knucklehead
The size issue is a moot point, no one really cares about saving that much room but be limited to 4GB, and as far as the power savings, even with HBM1 and less memory, the AMD Fury X with 4GB still draws MORE POWER than the GTX 980Ti with 6GB, so the power issue is a moot point.
AMD are a construction company. Pure, brute force to power the way through their task - this is evidenced by the raw power of the Fury X being 33% higher than the 980 Ti based on flops IIRC, yet still having the same or worse performance. If a game was 100% optimised for both platforms, utilising every single ounce of power in each card, the Fury X would blow the 980 Ti away. Unfortunately in real life usage, the Fury X has too much underutilised components on its board. Where AMD decided to chuck a load of compute intensive components on their cards, nVidia nerfed those and went for pure rendering efficiency. Hence why the TDP, etc, is better on the 980 Ti.
*As for 4GB issues, if devs stopped wasting VRAM on badly compressed textures and low PSNR textures then we would never need more than 4GB, even at 4K. SoM, I'm looking at you: "let's just give them our uncompressed textures (with a placebo increase in quality) in the form of an "Ultra" texture pack". The Fury X is perfectly fine at 4K, even with 4GB. AA is not
needed for a 4K monitor smaller than 30". Anyone saying otherwise should go to the opticians, because they're sitting way too close to their display. Here: http://www.tweaktown.com/tweakipedia/90/much-vram-need-1080p-1440p-4k-aa-enabled/index.html