It'll run decently on medium settings: http://www.tomshardware.com/reviews/a10-5800k-a8-5600k-trinity-apu,3241-11.html
Definitely get 1600mhz RAM though. You want to get all the speed you can out of the hardware, and this isn't an expensive upgrade.
Thanks for answer!
How fast do you think it will run on high settings no AA, 1280×720?