This is my first gaming computer build and am wondering which graphics card I should use, to start off I bought a MSI NVIDIA 770 4GB card but had to return in because it was faulty. I got a deal for 400$ on the card and now they no longer have them for the price, however i found the same card with 2GB VRAM (only difference for less than what I originally paid). I am only running 1 monitor at 1080p. Should i go with the 2GB VRAM or should I save more until I can get 4GB VRAM card?