FYI, I completed an evaluation between win10 driver 18.6.1 vs 19.4.2. Found no hashrate/power draw difference with TRM 0.4.4 miner. Evaluated on CNR algo only.
Still using ODNT? How do you set your fan speeds? IIRC there is no target temp in the beta version.
I tested a few 19.x drivers recently, on a 3x vega 56 rig, TRM 0.4.2 (also CNR only) and came to the same conclusion. Didn't have enough time to play with ODNT, but it felt weird having to spend time tweaking fan speeds. Target temp has been a set and forget kind of thing for me so...