Got a little issue here, thought it was something on my system, but sure it's something to do with drivers.
I had a 290 and all was fine up. After installing either crimson or once relive was added to it (I think after relive, but not 100% sure). On some games, sometimes and randomly they seem to hang. Like it pauses for a second, drops to 1fps before carrying on as normal and fps goes back up. Thing is, it doesn't seem to do it on all games. I just assumed it was something I had installed or was using (have overlays like rtss etc).
For me, it done it on Aragami, Batman arkham origins and assualt android cactus. Other games are fine, I put a large amount of time into arkham knight with no issues, nier automata no issues, binary domain, no issues, could have been luck (due to it being random), but I put 1100hours into rocket league on the 290 (with at least a few hundred after relive) and not once did it do it. It's not even a case of it doing it on heavier games, as arkham knight and nier are far more demanding than the three that done it.
I've passed it on now and in a completely different system, still doing it on some games. Again, Rocket league, completely fine, but Valkyrie drive, not demanding at all (5850 can run it) has the random hangs.
Any ideas? Some setting or option I missed in the newer drivers?