Yep. Time for an upgrade. Your CPU is outdated, so you'll need the recent i5 or i7 cpus, might as go with haswell now since they're just out. Graphics card needs an update too. Might as well get 8gb of ram while you're at it. Don't know what your PSU is rated at, but if you get a decent graphics card, it'll need a minimum of 500W PSU. And yes, all on top of a new motherboard.