I'm a HBM believer, AMD are not stupid enough to gimp their own top card with 4GB if it doesn't work well at 4k. It was probably the first thing they tested.
You see the issue with Titanx and witcher 3 for example as the card cant sustain 60 fps maxed out nor can 980ti at 1080p!!!!!! why have 6 or 12gb when the card cant power up enough performance?
While DX12 changes this equation a bit Fury has enough ram with 4gb as nothing else indicate differently.
Very good points. Only 1 day to go to see how this matches up.
For all we know X amount of GDDR5 doesn't equate to X amount of HBM.Or like Floppers is saying, by the time a GPU core has enough grunt to really push 4K graphics we will have HBM 2.0 and higher amounts of HBM along with higher performing GPU. Maybe 8GB HBM is a better match for Pirate Islands / Pascal.
Not long to go ! Feels like been waiting for years for this E3, all the specualtion haha.