CPU OC'd easily to 5.0GHz @ 1.375v. I didn't try to push it any further so it may or may not be capable of more. Maxed out at 84c after 45 minutes of AIDA64 stress test.
GPU OC'd +100 core clock / +700 memory clock. Wasn't able to push it any further reliably. Maxed out at 64c during Time Spy benchmarking. 3DMARK Time Spy Combined Score: 14,764 3DMARK Time Spy Graphics Subscore: 15,530