What does the extra Vram offer for gaming at 1080p/144hz in terms of longevity? I recently got a the Asus 144hz monitor and decided on a system upgrade, hoping for it to last enough for me to skip the maxwell gen. I've been saving up for quite some time so budget isn't really an issue. Thing is, I've been reading around all the hype about evgas 780s with 6 GBs and the upcoming Tis and people claiming 3gb is not enough in the long term. I'm not planning on going 4K anytime soon, I feel the hardware just isn't there yet. Seeing however how bf4 already pushes 2.3Gbs @1080p, for how long would the 3gbs of the Ti be cutting it? Noone wants to pay up for a multiple card config only to be vram capped in a year's time - on the other hand people seem to say that a card would "run out of power long before it runs out of Vram". And on another note, how many cards would I need to be able to push 120/144 fps to fully utilize the monitor? I've been looking at 3x Tis or 3x Blacks yet people tend to find it absurd for 1080p. Thanks!
You will have no problem with the 3GB on the GTX 780 Ti now and into the future. The big reason, besides the fact that nothing out now even comes close to pushing that limit, is the fact that DirectX 12 is expected to use memory more efficiently and thus require less, not more, VRAM.