I'm looking to buy a new GPU for my desktop computer (Compaq Presario CQ5110F). I bought it a few years ago, it wasn't a high end computer at the time so certainly isn't one now. As a result, I only have an integrated graphics card.
I was looking for a GPU to play some games like MMOs, MOBAs, Diablo3 and the like (not the big AAA titles). My budget is around 60$. I was originally looking a the GeForce 610/620/630 GT series but after looking at some reviews online I'm unsure.
My motherboard is a Narra5 so I have a PCIe x16 slot, although it is not a 2.0 (is that a problem?) My PSU is at 300W.
Also, since the pc is a HP, and processor is AMD, does that restrict the possible GPU that would be compatible with my CPU?
Blimey. That's a really, really low-end P.C. That CPU could well bottleneck your performance. Have you checked the recommended specifications of the games you want to play? One good tool for if you're doing that is http://www.systemrequirementslab.com/cyri.
If your CPU can run those games, then because of your power and CPU limitations, I can't recommend anything more powerful than the HD 7750.