For our overclocking testing, out best result came with +70MHz to the GPU core, which is fairly low. The GDDR6 memory however overclocked like a champ, and we managed an extra 1300MHz before running into some minor instability.
This overclock resulted in frame rate increases of between 6-7% in the games we re-tested at 1440p. This isn't a huge overclock by any means, but it is better than what we have seen from other GPUs recently.
Power draw hit 212W as a result of this overclock, a 10% increase over stock behaviour.