Had the stable heavy 1920h/s on V64 with the latest Vega driver. What is interesting that stable 1920 hashrate I could catch with several miner restarts when some first starts were unstable and lower. But when caught it was working stable till I manually stop it. 12H nonstop tested with 2 last gpu releases. But then I decided to test different drivers and now I cannot reproduce previous 1920. Only 1820 available. Could miner reserve some extra memory? Or maybe there's a way to forbid win10 using video memory for its needs.
I've noticed that teamred uses less mem with higher V8 hashes than SRB and JCE. Thats strange imo.