1440p vs 4k GTX 770 SC 2GB SLI

[bedenbeast]

I was looking into buying a new monitor for my gaming rig and I was wondering which would be better for my specs. My system is a i5 4670k with 16 GB 1600 MHz RAM and 2x EVGA GTX 770 SuperClocked 2GBs in SLI. I play many modern games and some older games. Based on my specs, which would be better? If neither is good for my system, would i need to sell my cards and go to the 4GB model 770s?
Thanks

 

[Gam3r01]

You would be severely limited at 4K with that graphics setup, even 1440p could be an issue. You are going to run out of Vram before hitting a horsepower limit.
I also would not invest in 4GB models as prices are up. If you were to upgrade, I would suggest 970 SLI or similar.