So right now I'm running an i5-2500k oc'ed to 4.0Ghz, an GTX 560Ti, with 8GB DDR3 RAM, on a 650W PSU. Obviously this is all pretty alright. Like only recently have I started to run into games that I can't run at max settings or just don't run well for some reason. So this isn't a pressing upgrade, but I am beginning to think about where to start. It really comes down to the GPU or CPU, and whichever is the weakest link. Does anyone have any thoughts?
And I understand this could be a bit of a domino effect, so once I get going I'll probably go over the whole thing within a year.
On a related note: could a 650W PSU handle higher end graphics cards? Like I saw even the GTX 980Ti has a system requirement of 600W, so by the numbers I'm fine, but if I did decide to go all out on a GPU, would it be a good idea to upgrade the PSU too?