Quote Originally Posted by Blazzok View Post
You can put any new GPU into a PCIe 2.0 slot and it won't matter, current GPU's aren't hitting the bandwidth limit of PCIe 2.0 yet, so there won't be a performance drop.

On a personal note regarding SLI/XFire, I bought my last PC with the thought of getting a 2nd GPU later on when they are cheaper, but the prices never really dropped all that much for me to consider a 2nd GPU. In fact, since buying my components, prices have gone up. So now I'm just gonna wait it out for the 800 series from Nvidia and see how that compares to the current R9 series from AMD and upgrade to a new, single GPU.

However once again, more of a personal taste than anything else. SLI/XFire has evolved to the state where you can almost get double the performance when running a 2nd card, apart from some games sometimes having trouble with such a setup (mostly older games). Also to take into consideration will be the extra power required for a 2nd GPU as well as the extra heat that will be generated by the 2nd card, so you will need a well ventilated case.
interesting. I suppose the cost of the better case, extra power, better mother board also needs to be taken into account. You could throw that extra R1000 into a better card up front.
I'm still running an ATI 4850 and have often toyed with the idea of hooking another X8XX up to it, just for an extra bit of juice, but a quick scan tells me there isn't really anything available anymore unless I go second hand, which I'm reluctant to do, I must say.