Not a pro, but from personal experience the i5 tends to choke when playing some AAA games. By choke I mean they go up to 100% usage (happens to me in AC and Forza because I did not play/try any other games on it) and it is quite annoying. I am online on discord all day long while I'm playing and if the CPU goes up to 100% I can't hear anything and my friends can't hear me either... Basically, if you want to have higher FPS go for the i5, but you will sacrifice any other background app. If you want to have background apps running fine go for the r5, but you will be penalised with around (maybe) 10-15 FPS ?
I'm now selling my i5 because it's just so damn annoying. Buying r5 2600 soon.