You just have to sacrifice sleep and time is thereToo much work, and family, to really get to play with the new GPU out here so far
Good to hear that Afterburner has extended memory OC limits, though!
Since it has been a while since I needed to check a GPU OC for stability...
Can you guys recommend any good benchmarks/stress tests for stability testing?
Besides just gaming, of course
Witcher 3 and Cyberpunk are on my short list of stress test games; anything else that is extremely OC sensitive I should have in mind?
Specifically for tuning the memory, is UNIGINE Heaven in windowed mode still the preferred method?
As I recall from my 3070 adventures, the memory can go quite a bit higher than is stable, thanks to the ECC, to the point of loosing performance.
Though, as dated as Heaven is, I would guess it will end up being CPU limited by my 5800X, and not show any differences from the memory tuning...
Too bad GDDR does not throw WHEA errors (I believe), as that would make everything quite a bit easier!
. Bonus points scored with wife as its always me going to our kid in the night 
As for testing I use 3d mark for synthetics, Speed Way, Port Royal and Nomad. Two first put good stress because of RT and Nomad even though it's pure raster puts huge amount of power on the GPU. After my OC it's 400W constantly when running it.
Gametech benchmark is good as well, found it on forum here. It's UE5, available on steam.
Unigine Superposition is the next one.
For games as you mentioned CP2077, Witcher 3 but also Alan Wake II, tried Stalker 2 as well but that can crash for other reasons than OC.And whatever I have installed, Forza Motorsport, Space Marine 2 and Black Myth Wukong.
So far current OC passed all of the above so I'll need to push it further.