I wouldn't call your rig a "low end system." However, I don't think your computer will be able to take full advantage of what the GTX 680 can do. If you plan on upgrading your CPU or motherboard soon(6 to 12 months) I'd say go ahead and get it. Even though your rig cannot let the 680 "be all it can be," you will certainly get a LARGE increase in performance. It will also some what future proof your system. Only thing I'm worried about is your power supply, can you give me more details on the make and model of your PSU?
Wow thanks for the tip! I've been wanting to play Witcher 2 at max settings ever since I played it at a lower resolution(from 1920x1200 to 1600x1050) with mediocre settings and was disappointed with the performance and lets add Skyrim with max settings! I'll be at my cave for a long time.I was mostly worried that your power supply wouldn't have the right connectors. I checked it out and you're fine. Go ahead and get it if you want, I know I'd like a 680
Not really, from the same link I posted above a quad core Phenom gets around 50-55fps compared to 78fps for the 2500K. That's a 50% and noticeable difference, especially as those are just average framerates and you really want minimum fps above 60fps.You should be able to upgrade to the phenom x4 955 for about $100. That would more than support your 680.
. A GTX 680 with an Athlon II X3 is not a very balanced system.
Maybe not, but it doesn't matter in none CPU dependent games. He can worry about a CPU when games actually start to need it.