It happens less on single player games (without internet connection) I gave a few games a test on their single player mode (Rocket League, NFS Payback) and there may maybe 1 freezeup of the frames on screen, not very noticable, but noticable.
i'm using F4-3200C16S-16GVK (red as opposed to black ram)
I've changed the RAM speed to 2166 now, still seems to happen but just not as often.
I could do a trace for when i'm playing online and then a trace for offline if you like?
It definitely feels better, but don't want to say for sure, since the massive fps drops/freezes could take their time to show up, and i only spent maybe 5-10 minutes on each game to test.