Right now I have an Intel i3-3220 and a GTX 660. My motherboard can support up to four GPUs for a four-way SLI.
Would I need a more powerful CPU if I ever wanted to add one more GTX 660? What would be the cheapest Intel CPU that could handle two GTX 660s?
And if I need to upgrade my CPU along with a new GPU anyway, then would it make more sense to completely replace my current GTX 660 when I want to upgrade, and get a better GPU and CPU, or just get a new CPU and another GTX 660, and SLI the two (or three, or four) cards?
Would I need a more powerful CPU if I ever wanted to add one more GTX 660? What would be the cheapest Intel CPU that could handle two GTX 660s?
And if I need to upgrade my CPU along with a new GPU anyway, then would it make more sense to completely replace my current GTX 660 when I want to upgrade, and get a better GPU and CPU, or just get a new CPU and another GTX 660, and SLI the two (or three, or four) cards?