Intel(R) Core(TM) i7-3820 CPUS @ 3.60 GHz (8 CPUs), ~3.6 GHz
AMD Radeon R9 290
I'm encountering rather bad stutter, where the game freezes for a few seconds before continuing. Sometimes it happens once, sometimes it happens in bursts.
Also, after a while of playing, this has started appearing:
I assumed it'd go away overnight perhaps, but after just starting my PC and GTA V, it's persisting.