Have tested the card in both 1440p 144Hz and 1080p 60Hz.
At 1440p / 144hz, the card gets to work much harder and the fans spin up audibly. So I adjusted the voltage via Wattman to 1100mv and locked the frequency to 2000hz, and I also pulled the current to +50, then the card works very well and quiet.
At 1080p / 60hz the card is not even strained and almost silent.