From my experience coil whine is fairly common with more powerful

Can't hear any coil whine during stress

Taking a star off because of loud coil whine when playing certain games

Performance on this card is amazing, and I was able to get a pretty hefty overclock watercooled, but the card suffers from some terrible coil whine

Firstly it does get hot under high stress and you will need to adjust the fan speed manually to keep it running optimally, but even under full utilization of the card, it does not exceed 65*C in my rig, which is a very high airflow rig

pros: excellent performance, great quality, nice LEDcons: hot temp under load 80 c and above but with good airflow temp got down to 70 c under load