Been considering getting this 660 http://www.computerlounge.co.nz/components/componentview.asp?partid=17697 over this 7870 http://www.computerlounge.co.nz/components/componentview.asp?partid=16518 because it has a higher clock speed (boosted) and of course, it supports PhysX. It is also cheaper. Should i get this 660 over the 7870?
