Upgrading GPU

Looks like a decent performance upgrade and a pretty good price, all things considered.
An OC'ed 660 doesn't require much more power than the 550 Ti you're presently running. Power charts for the 550 Ti, stock 660 and OC'ed MSI 660 @ 1085 core/1150 boost - not appreciably faster than the EVGA ( ~ 40MHz higher) >here<. The performance charts from the same review should present a good guide versus both the 550 Ti and any other card in the same price bracket.
 
There is a picture of the PSU in the first post, it's one I got when I bought my HP computer nothing fancy im presuming. Im gonna check out the calculator right now.
 
+12v rails look like they have enough amps, just a question of watts now. That calculator should answer your question though. It's going to be close *nerd*
 
Back