Frore says diamonds are AI’s best friend

Diamonds and GPUs don't normally appear in the same sentence unless somebody has spent far too much money customizing their gaming PC.

Frore Systems' LiquidJet Diamond, however, uses the material for a considerably more practical reason: keeping extremely hot AI processors cool.

The direct-to-chip cold plate embeds diamond spreaders into its bottom surface, positioned directly above GPU hotspots. Diamond's extremely high thermal conductivity helps spread concentrated heat before Frore's liquid-cooling architecture carries it away.

Frore says LiquidJet Diamond can handle hotspot densities of up to 770 W/cm² under its specific test conditions. Compared with conventional multi-inlet skived coldplates, the company claims 75% greater heat-transfer efficiency, GPU temperatures 16–22°C lower, and 30–35% more AI tokens per watt.

Those are Frore's figures, not independent benchmark results, so the diamond dust's proficiency is at the moment unconfirmed.

The technology is designed with future accelerators including Nvidia's Rubin Ultra and Feynman, AMD's MI455 and MI500, plus custom hyperscaler chips in mind. Frore also demonstrated its cooling technology with a 2,300 W Nvidia Rubin GPU at OCP Global Summit 2026.

AI accelerators are only getting hungrier, so diamonds may be here to stay — until the next GPU generation makes their heat-transfer capability look pale and barely sufficient, anyway. As is the case with many Frore projects, it is not clear at this time how wide the LiquidJet Diamond's adoption will be, though.

A year-old video describing the original LiquidJet tech is embedded below.