780 Ti or ASUS 780 Strix 6GB?

[Aftermath21]

I know this question been asked a million times but I see 50% answer some people say we will need more than 3GB for future games others said bad optimizations an example Watch Dogs I have the 780 Ti but Watch Dogs stutters a bit in some areas so I was thinking of returning my 780 Ti and getting the ASUS 780 Strix 6GB. I spend good money on the 780 Ti I want to be future proofed.

Thank you.

Specs:
Intel 4670K at 4.2GHz
Corsair Vengeance Pro 1600 9-9-9-24 1T @ 2133 9-11-10-30 1T
ASUS MAXIMUS HERO VII
ASUS GTX 780Ti Direct CU 2 OC
Samsung EVO 840 250GB
Corsair AX750 PSU
Corsair H110 Water cooler
Corsair 450D case with 2 bottom 120mm fans intake 2 front 140mm intake and 1 120mm exhaust fan back of case. Plus 2 140mm intake fan on top of the case blowing on the radiator.

 

[Karadjgne]

I'd go with the 780 6Gb then. With that card you can say goodbye to the Titan, its only advantage over the 780ti was the ram