Oh wow, no wonder it was so cheap! Sorry about that. It can probably play 30 FPS on fair graphics. You might have to sacrifice view distance, and playing in a 25 man raid environment may not be to good. Like I said a dedicated card makes LOADS of difference when playing video games. I would even sacrifice some of your ram (8 GB down to 6 GB) to get a dedicated card. If all you are playing is WoW I wouldn't be too worried though. In my opinion it would be worth it to flesh out a bit more money for a dedicated card.
http://store.acer.com/store/acerna/e...ryID.60084600/
This one is 750, but also has USB 3 ports, as well as a good dedicated graphics card. However, if you need a smaller screen (and thus lighter laptop) you may just want to stick to the one you have. Most laptops with a graphics card have a much larger screen (like the one I linked).