dok, tried the 2 threads on ethash, trivial hashrate boost from 64.1 to ~64.3. bus width and overall memory bandwidth will hamstring this card on ETH, was somewhat expected; whether or not the cache can help in some way is yet to be determined I guess.
Tested various multi-threaded configs on cn_xhv, best final result is still 2400 H/s.
Will reach out on discord for cn_gpu.