Should i swap cards for 4k?

[doctorgiggles]

should i changed out the dual 770s for duel 280x 3gig? This is what i have so far.
FX-8320 Octo Core Processor (3.5 GHz, 8 MB L3 Cache, 4x2 MB L2 Cache, Socket AM3+)
Asus M5A99FX PRO R2.0 ATX AM3+ Motherboard
Corsair Vengeance 16gig ddr3 Ram
2 GTX 770s 2gig SLI
1-128 ssd drive
2- sata 500 gig drives
Corsair H100i CPu Cooling
2-24 inch led 1-acer 1-samsung
1- 4k samsung monitor

 

[makkara]

Not worth it imo.

 

[_Epix_]

I don't think that you should switch out the gtx770s. The GTX770s are more powerful than 2 R9 280X. And I dont think that CPU can support 4K gaming

 

[doctorgiggles]

the 770s are 2 gig and when i go to the 4k res i have to lower the settings on games for it to even mildy get moving.. WoW runs fine.now bf4 on the other hand when it get tough man does it drag i would believe the Vram upgrade on the 280x's would help or should i get a r290 now and cross later?