@Jurrunio @alyen
Sorry for late response.
All my GPUs are mining on Hive Os / ETH / t-rex / flexpool
I don't know what you mean by operating frequencies.
I have only one more card in 60s and all others are in 70s in power consuption.
I did not try to measure from the wall, because I don't care that much.
I sold the card because it didn't have a warranty, so I won't be able to do more testings, but I bet it could go even lower if I have forced it, because I only used core OC as a limiter.