Video cards vary wildly, the year you bought it is not very relevant. Every year there are GPUs that get released that have performance variances by literally thousands of percentage points. Imagine a typical ingegrated GPU like you have drives the streets like a Toyota Prius, but a top-dollar GPU is a Lamborghini, except that this particular Lambo can drive 3,000 miles per hour.
You can probably spend very little and get a much better GPU if all you want to do is have it be playable on low settings from Craigslist or eBay. We need to know what model of motherboard you have. Open up CPU-Z
and go to the Mainboard tab, and tell us what make and model of motherboard it says you have. If you're using an integrated GPU, you should have a free slot on the motherboard for a video card, probably a PCI-Express x16 2.0 slot judging by the processor, which should be an AM3 socket.