GBWF3 3GB 280x CF VS GBWF3 2GB 770 SLI. Help me decide.

havene123

Honorable
Nov 10, 2012
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What do I pick have one 1 770 atm, got an offer to sell for 290, 280x costs 299$ on sale!

I'm certain of SLI or CF, just 280s or 770s not sure which. 3GB of VRAM is a definite selling point for me, if I went witht the 770 It'd be 2GB. I think 2GB is the new 1GB now... what do I pick?