It's too slow. A 2.2Ghz clock is going to absolutely crush you if you try to play single threaded CPU intensive games. Sins of a Solar Empire would die horribly by late game, games based on the Clausewitz engine, like Crusader Kings 2, Supreme Commander, CivIV, the list goes on.
GC3 would run great, but aside from DX12 games going forward, that's basically it. You'd probably get more than twice the performance in most CPU intensive games by going with a quad core 4Ghz 6 or 7th gen i7.
