I am currently researching my next build and would like to keep it as low cost as possible, though I don't want to skimp on spec as I will need this rig for gaming, Solidworks, 3D rendering, folding and the like. Currently I have priced up a build which includes 2 x EVGA 4Gb 670's which comes in at around £2473.81. How ever if I was to opt for 2 x EVGA 2Gb 670's it comes in at £2327.17. So what I would like to know is basically is the extra 2Gb on the cards worth the £146.64, I have a feeling it might be but I can;t seem to find any hard evidence to back this up. (Reviews and the like) Any help would be most appreciated.