My PC is getting C-R-U-S-H-E-D with low video settings when I'm in Meridian or in any large-scale fight. I'm running a Core2 Duo CPU with 4Gb of RAM and an nVidia 260 GTX (I think). I understand that this rig is grossly underpowered to get high-FPS performance, blah blah blah.
I'm going to upgrade to an Intel i7-3770K with 16Gb to address the core hardware issues. My question is whether I really need to upgrade the video card or not. I'm looking at a GTX 570, but at $270, I'd prefer to not have to upgrade if necessary. I understand that the 570 is a far more capable card, but is it really necessary for me to get adequate FPS?
I'm thinking anything around 30-40 FPS under normal conditions and 50% of that under heavy load would be great. Ideas?