Anyone who frequents this forum will know that the suspected graphics cards for the upcoming iMac refresh are the AMD 7970m or the Nvidea GTX680m. From what I've gathered, these cards seem to be more geared toward gaming, which I quite honestly couldn't care less about. I've been told that cards can be either optimized for gaming or for other stuff (i.e. viewport performance in 3D programs like Cinema 4D, etc, which is what I care about). My question is, as good as both of these cards are for gaming, how well does someone with knowledge on the issue think that they'll perform for 3D viewport performance? If it does as well for this as it does for gaming I think that I'll be pretty happy, but will I be wasting money opting for this option, or should I potentially consider a refurb/used Mac Pro that I could put a workstation card in? Thanks!