APU's aren't very good for gaming. As for "fluent gameplay" it totally depends on the game but there aren't many modern games that would run very good on this. BF4 would run like crap on this.
I've seen benchmarks that indicate this APU is okay, but everybody I've talked to says they regretted the purchase.
I strongly recommend getting the X4-750K CPU instead and increase your budget to get and HD7770 or better graphics card.
APU's also share your System RAM (DDR3 memory) so they use up some of that memory and also are bottlenecked if it's not fast enough (i.e. 2133MHz).