Should I go GPU or CPU? which upgrade should I do.

[hyperst]

Thinking about upgrading something but unsure what I should do.

Was thinking of getting another 480 for some SLI or was thinking I should go SB and motherboard, namely the Z77 chipset that is coming.

If I go GPU it means me sticking with my i5 750 for at least another year and it will cost me at least around £350 to do it as I will need a new PSU at least 850w corsair and another water block.

If I go with motherboard and SB2500k I think it will cost me in the region of about £170 to do after I sell on my cpu+ board +ram.

What should I do as I can only do one and have been looking at SB for a while and these new Z77 look so nice but on the other side if I go SLI I will get a boost in game, mainly Bf3.

 

[hyperst]

850w will be pretty severely pushed with gtx 480's in sli, particularly if you oc the cards and the cpu.

I thought 850w was considered plenty for SLI 480's, I run the one I have at 850mhz so would do the same if I got another, this is getting trickier, really don't know what to do.

As suggested by cmndr_andi, holding out for Kepler seems a good idea as well.

Now got three options to think about.

I only use 1 screen at 1920x1080 but run BF3 mainly on low settings with a few on high to get good fps and it's totally playable so that is why I am swayed to do the CPU upgrade but on the other hand going from a 4ghz i5 750 is not going to most noticeable, damn this is hard.