Windows Experience is a 7 overall, with 7.3 for Processor and Memory, 7 for both graphics, and 7.5 for the hard drive. I'm not moving to a new video card any time soon, but I might risk overvolting it and pushing the clock a bit more. Not bad for a four-year-old computer.
http://valid.canardpc.com/show_oc.php?id=1958644