In my mind this thing was way bigger lol . As Mr.Friendly alluded to Its actually smaller than D14 by a bit but quite a bit heavier. So most likely denser fins as well. Guess we will see.
This: 140 x 121 x 158 (H) - 1000g
D14: 140 x 130 x 160 (H) - 900g
D15: 150 x 135 x 160 (H) - 980g
Actually may fit on a ITX board better and overall clear memory easier by being 9mm narrower.
Now you mention it, I can't even remember if my big noctua is a D14 or D15. I'll check later.
But 9mm narrower isn't a lot tbh. I'd rather have the whole thing taller and chop 15-20mm off both other dimensions, if I were wishing for max compatibility.
And on a different note: is dual flat towers really the best possible layout? Has every other kind been tried and found to be less effective? I admit, I kinda miss the days of having every weird type of heatsink possible out there for purchase. I bought many of them! And while some of them didn't have the greatest performance, they did win at other things that air coolers seem not to care about anymore.
Example: I've still got a Scythe Orochi, a massive, massive tower that's essentially one solid tower bent over the ram slots. Think it has like 8x 6mm heatsinks. If it's mounting system were better than the stock AMD two clip -style I'd have tried it out for performance. But despite that, it's still *by far* my best heatsink for passive/convection cooling. In a standard case with just one top 120mm fan running, I'd say it could handle a 65w CPU with Nothing else - no fans on the heatsink itself. At the moment it's running an OC'd APU with one fan on it in addition to the top exhaust, and it's barely even getting warm.
The fins are spaced Very wide apart, and the swarm of heatpipes spread evenly across the fins - Unlike tower or dual tower heatsinks which stick the heatpipes in a line and leave the middle of the fins far away, where the center of the fan is. It's just an all-around better design for passive cooling, and has made for some seriously *Silent* PC builds of mine over the years. Like, the quietest possible builds with the fewest numbers of fans, Without any sound proofing or dampening.
Shame such coolers don't have modern equivalents...