Summary: This thing is a beast, in a very good way. Seems like a bit of a monster, but it installs solidly and is a serious cooler. I previously had the side-by-side version of the noctua cooler, but I like this stacked version a little better, though mainly for looks. It probably performs about the same, but I do like the idea that it blows down onto the chip and motherboard, and it also looks great from the case window. Overall very nice, and tough to beat.
Summary: And that is a ridiculously overbuilt product with visually evident meticulous quality control that performs absolutely perfectly. Even the packaging is top notch. Just mind the specs, because it's bigger than you would expect going by the pictures. As for performance: it easily handled an old, mildly overclocked Bulldozer arch processor that previously ran excessively hot on the stock cooler on stock clock speeds.
Summary: My case just is too lame to fit this much awesomeness. PCPartPicker said it didn't fit but I wanted to find out for myself, out $10 return shipping but damn was it worth it. The level of quality was amazing. Makes me want to get rid of my custom loop for some Noctua. Best mounting system I've come across. Best packaging I've come across too. If it fits your case, get it now!
Buy this thing for your next rig or to upgrade from a stock fan/cooler
David Kullik, Amazon
30 March 2014
Summary: I can't say enough good things about this Cooler. From the packaging, tools, hardware, design, engineering, performance, ease of installation. The fact it's fully customizable to clear either low profile or high profile ram: 2 fan or 1 fan design, and 3 speed options depending on which wires you choose. Noctua knows pc fans and cooling.
Ultra Quiet Fan. Couldn't be happier with it. Worth every penny.
David P. "David", Amazon
28 March 2014
Summary: Extremely quiet fan. Been using it for a month and my high-end gaming PC is so quiet, I can't even tell it's ON. Even with the case open you can't hear this fan. Huge improvement over the liquid cooling and constant fan noise my Alienware made before this change.
Summary: As a home computing enthusiast, I've used a few big honking PC coolers before, such as an old Arctic Cooler Freezer Pro model. However, having shelled out the extra dosh for this Noctua model, I don't see any reason to ever go back again. This heat sink is a real Cadillac among coolers, right down to the glorious heat pipe arrangement that made me halfway apprehensive as to whether I should put this in my computer or display it in a car showroom.
Summary: I put this in one of my computers I have mining crypto-currencies (Bitcoins etc). I needed high cooling capacity but a low profile so that I could fit the optional 200mm. case fan that sits in the door to my case. Installing it was not terribly difficult, but lining up the screwdriver--through the radiator and fan was mildly annoying. I'm running my CPU--and AMD FX-8350 at about 95% load 24/7 and my temps stay below 50C. This is a terrific cooler.