I am happy with the card's performance, but the coil whine is a bit annoying in Battlefield 4. At one point, suddenly an explosion sounded very loud, distorted and wrong through the speakers, so I closed the game scared. I've read that burning in the card with stress tests should reduce it, so I'll leave 3DMark overnight this weekend and see if it helps. When I run Ice Storm test, it sounds like a bird screaming.
You're lucky you don't get that, Flockula.