I recently came into some money and am looking to spend some on my gaming rig. right now its pretty budget and sorry i do not have exact name specs which is very useful i know but anyway heres what i got.
i can get skyrim on high/ultra and maintain really good fps but i want better. i was thinking about upgrading to a 680 but after some research it seems a 670 would be a smarter choice as difference is negligible. would I see a much better improvement or should i sli another 660ti and upgrade my psu.
I wouldn't get anything. Not to be mean, but the 660ti isn't that great of a card. I would wait for next year's amd and nvidia series to come out. No gpu you get right now is going to be a significant enough improvement on what you already have.
log into partspicker.com register, and start yourbuilding there I't a great place to get 1 started, link what you have after you are dune and we will be happy to help. List the $ amount you dont want to go over as well and what you pan to youse your system for. have fun
Probably upgrade your CPU to an i5-3570K - that would give you high framerates more consistently. Unless you're gaming at higher than 1080/1200 your current card should be giving you Ultra at an average of 60fps or higher.
Your target resolution, settings (including mods), and average framerate would be helpful.