Thanks for the testing, it has been very helpful.
Anyway you could do more testing in regards to overclock (specificially TDP and core clock)?
I have a few Zotac Amp Extreme GPUs in this test rig, they're factory OC'd. With as little as +100 core, they'll crash. So, unfortunately I can't reliably test core OC
Perhaps compare -100 or -150 to +0? Seems it would give a good idea on how much core clock effects the hash rate.