I have a strong dislike for the orbs.. At 5800rpm, that's gotta be fairly loud.. When we're talking heatsinks though, money isn't a large issue for me, so I look at it as you're paying with the noise level. I have my own little noise/performance formula type deal.. At any rate, the orbs offer far too little performance for far too much noise. Now, some other even louder heatsinks I don't diss as much cuz they offer incredibly cooling.. I just think the orbs suffer a bad design.