Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.2 (Windows/Linux)
I noticed a higher Total speed in Claymore v11.2 of about 1mh/s. I'm mining with 3x rx480 + 3x rx580 in that rig. It's not that much, but 1mh/s for free is nice too 
For my R9 390, the speed increase is about 0.3%.