Soldato
- Joined
- 5 Sep 2011
- Posts
- 12,883
- Location
- Surrey
first thing don't sink yourself in this vram issue. at the moment it is more theory than actual world results. I played all the power thirsty games on 4K on gtx 970 sli (almost everything on ultra with AA off). Witcher 3 was just over 40fps with AA and hairworks off. Crysis 3 was pretty much the same. Farcry 4 stayed between 50-60fps. Tombraider around 60fps. All these are playable frame rates and no single card will do better than this. I overclocked my cards and I am confident that no single card beats a 970 sli setup at any possible resolution. You will want to buy a 980 ti or titan x at the moment only if you want to pick up another one down the line to sli. otherwise you will live with overall inferior performance to 970 sli. 970 sli is cheaper option for you because you already own one. but again that is assuming that games you play have good driver support for sli.
2-Way Sli Gtx 970
Firestrike
http://www.3dmark.com/fs/5014740
SCORE
17927 with NVIDIA GeForce GTX 970(2x) and Intel Core i7-4790K
Graphics Score 24330
Physics Score 13560
Combined Score 7198
Skydiver
2-way sli gtx 970
http://www.3dmark.com/sd/3094461
SCORE
39927 with NVIDIA GeForce GTX 970(2x) and Intel Core i7-4790K
Graphics Score 76614
Physics Score 13505
Combined Score 24102
Showing two sets of results from synthetic tests doesn't really prove anything. If you want to claim performance is acceptable at 4K which can be principally subjective you would need to show frame time data.
I'm guessing in most cases this would disprove what you are saying
