As someone looking to build a budget gaming pc of around <=£600, I was first pointed to the 2GB 960, my build with this card came to £575, I saw recently however the 4GB version of this card has been released and brings my build to £601, I haven't seen too many in depth reviews or comparisons between the two so I'd like to ask; is the 4GB version worth it over the 2GB in the long run? Is there many advantages and is it good value for money?