Ceramic heatsinks

[Eigencentrality]

I started seeing ceramic heatsinks for Raspberry Pi.  The little I could find about ceramic heatsinks indicate they might work well.  They're also less expensive than nice copper heatsinks.  I've got some vram that needs taming.  (The R9 390 gets blisteringly hot.)  Has anyone tried ceramic heatsinks, or knows something about them?

[Levent]

I am not sure if all ceramic heatsinks are good (there are ones called pourous ceramic heatsinks which are allegedly better than metals). I would rather get copper or aluminium to be safe.

[Pixel5]

where have you found ceramic heatsinks, ceramic is a good insulator so it would be pretty bad as a heat sink

[Eigencentrality]

1 minute ago, Pixel5 said:

where have you found ceramic heatsinks, ceramic is a good insulator so it would be pretty bad as a heat sink

https://www.amazon.com/3-Piece-Ceramic-Heatsinks-Dissipation-Raspberry/dp/B07T1VSPG1/ref=sr_1_1?keywords=ceramic+vram+heatsink&qid=1570561307&s=electronics&sr=1-1

https://www.amazon.com/Youngy-Ceramic-Cooling-dissipador-Raspberry/dp/B07R4ZJ918/ref=sr_1_8?keywords=ceramic+heatsink&qid=1570561077&s=electronics&sr=1-8

https://www.amazon.com/MANGKE-Dissipador-Anti-Static-Heatsinks-15x15x5MM/dp/B07WFJKY78/ref=sr_1_3?keywords=ceramic+vram+heatsink&qid=1570561307&s=electronics&sr=1-3

There are others, too.

[TheInfinityBacon]

3 minutes ago, Pixel5 said:

ceramic is a good insulator so it would be pretty bad as a heat sink

 

There are different types of ceramics, and not all of them are insulators, some are conductors.

[Bacon soup]

10 minutes ago, TheBaconGuy said:

some are conductors

Some are super conductors!

[shaz2sxy]

They used to use Ceramic in CPUS in the good old days