970 4gb sli, or 970 8gb sli? 3 year+ 'futureproof' build

[Guest]

I'm planning a new build and i have all the other components figured out with a certainty. i will be using a 4790k as more recent games are showing benefits from more cores and i plan to pair it with gtx 970's in 2x sli. but the question is 4gb or 8gb? I'm trying to figure out which balances with the gpu performance best as i don't want to get 8gb of vram and have frames below 30 fps in order to utilize more than 4gb (talking about future titles, obviously this won't be a problem now) i'm running 1080p now and will be for a little while but i'm upgrading to either 1440p or 4k shortly after this pc build. which do you think would balance better with the gpu performance?

 

[Nuwan Fernando]

SLI of 970 will give you a solid performance. Extra memory will benefit in higher res gaming. Since you are planning to upgrade to 4K What I feel is that 8GB versions will give you more potential. And yes. With the SLI setup that 8GB memory will not just be a waste.

 

[sammy sung]

I'm personally considering this option for 4K solutions

PCPartPicker part list / Price breakdown by merchant

Video Card: XFX Radeon R9 295X2 8GB Core Edition Video Card ($656.50 @ Newegg)
Total: $656.50
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-11-25 23:47 EST-0500

Granted it's much larger TDP and needing to practically sit your tower in a mini fridge

 

[Guest]

I'm personally considering this option for 4K solutions

PCPartPicker part list / Price breakdown by merchant

Video Card: XFX Radeon R9 295X2 8GB Core Edition Video Card ($656.50 @ Newegg)
Total: $656.50
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-11-25 23:47 EST-0500

Granted it's much larger TDP and needing to practically sit your tower in a mini fridge

My all amd rig has been giving me nothing but trouble recently, mostly driver related so i want a break from the amd bull gonna give nvidia a shot.