Okay? I'm only basing this on amazon and newegg verified purchase reviews in addition to my own experience. Of course there is always the possibility that verified purchasers (and newegg notates VERIFIED PURCHASERS) of these cards, all 100% of them, are liars. My personal experience is I haven't had any Kepler card with coil whine, and I had 2 7970s with coil whine - and there are more reports of coil whine with AMD 290 cards than there are with Kepler cards. This is factual - but I'm not saying that it doesn't exist on both sides. But, the reviews of verified purchasers seems to indicate it's a bigger problem with the 290. That is factual. You can read the reviews with the 290s getting more 3 and 4 star reviews based in part on this, while the 780 for the most part is straight 5 star. Again, there's always the possibility of the verified purchasers all being liars. But the reviews are there, that's what i'm basing it off of as well as my own experience - I had 2 dual-X 7970s with coil whine, no kepler cards with coil whine. Just my experience and what i've seen based on newegg/amazon verified reviews. If you care to argue that these reviews are in fact, all liars, even though they purchased cards, you're free to do so.