ppnWell Im saving for anything on 6nm with 66Mtr/mm2 density, GDDR7 instead of this GDDR6x.

ValantarThat's debatable - this design does maximize fin area for a two-slot card in terms of having fins "all the way out" rather than having a shroud around them. What is questionable about it on the other hand is (as @RH92's illustration above shows) the middle section of the fin stack having next to no airflow through it. There will be some, as the fins aren't nearly as dense as those directly surrounding the fans, but most of that air will take the quickest possible way out of the fin stack, leaving most of the middle/diagonal fin stacks with near zero flow. Nvm, didn't spot that the fins were entirely closed off. Passive VRM cooling fin stack?

Still, as an SFF enthusiast I have to applaud Nvidia for moving to smaller reference PCBs. Should allow for some pretty nice AIB partner ITX cards, even if this cooler design will be terrible for sandwich style cases.

Edit: see above.

Midland Dogfor verticle mount this would go off, just need red rgb :)

1d10tThat exactly what I meant.Those fin array arrange diagonally, with their end being blocked. It would be useful if they stick to regular fan instead of Axial.





Two regular 92mm fan will provide best cooling and also keep noise level to minimum.But hey, what do I know :D

CasecutterIs it just me or do those Heatsink look to be 3D printed? New types of laser powder bed fusion (LPBF) materials make it possible to produce components with a wider range of complex geometries for optimal heatsink efficiency, that are not possible with traditional manufacturing processes. However I don't such a process being cost effective for even $1000 consumer graphics cards, but they could prove me wrong.

Edit: Looking at this more I believe the tubes could be printed and then after filled and swedged under vacuum r... that to be would be tricky cause if you make a mistake you loose the whole printed component. Or, on the side we don't see they have a sealed plate that connects everything in one vapor chamber.
More i consider looking at the cost the idea from a total manufacturing point this might have advantages and offsetting costs in assembly. While upfront you design, and optimize in the software, send it to print and have the working design to go actually evaluate in hours. IDK I'm starting to see the value in this ability.

www.comsol.com/blogs/comparing-optimization-methods-for-a-heat-sink-design-for-3d-printing/

ValantarThere is nothing in this design indicating that it is manufactured in any exotic way. Both end heatsinks are standard fare with stamped fins packed (relatively densely) together, crimped in various places, and pressed onto their respective heatpipes or cold plates. The middle portions are extruded aluminium profiles cut to length, with any necessary cutouts CNC'd into them afterwards. All fins are clearly far too smooth, straight and even to be printed - there would inevitably be printing artifacts of some sort if it was printed. The article you linked seemed to be about designs optimizing surface area far beyond conventional fin stacks, while this is clearly nothing but a (couple of) conventional fin stack(s).

CrackongAre those 8mm heatpipes?
Dang this thing must be HOT

CasecutterI would say look at the blow-up that RH92 gave in his post #8 that does not appear all that smooth. You should look around on the internet and see what's happening in the field... Direct Metal Laser Sintering (DMLS) (Printed metal) and/or bed fusion materials have come a long way.

They probably look like that as they are printed, not traditional copper heat pipes