Gpu's that do 30 bit in PS CC ? Are the mid-range cards better than the lower end cards for PS CC ? My old card is a Geforce GTX 260 with the latest drivers , I do no gaming , PS CC seems to work fine what little I have played with it . Am I correct in thinking that only Quadro or FirePro cards do 30 bit in PS CC ? How much does the amount of memory in the card play in performance ? Why do these cards cost so much compared to much better performing gaming cards ? Can LR 5 do 30 bit ? Thanks !!