Frore Systems Introduces Diamond-Infused LiquidJet Coldplates for AI Accelerators

New LiquidJet Diamond Coldplates

Frore Systems has introduced its LiquidJet Diamond liquid-cooling coldplate series. This new product incorporates a diamond surface and a multi-stage 3D short-loop jet-channel microstructure. The design targets precise hotspots on high-power AI accelerators, including AMD's Instinct MI400/MI500 series and Nvidia's Rubin.

Performance Claims

Frore Systems states that the LiquidJet Diamond coldplates can manage hotspots with power densities reaching 770 W/cm². The company claims these coldplates reduce GPU temperatures by up to 22C compared to conventional coldplates. This temperature reduction reportedly leads to an improvement in AI token throughput per watt by as much as 35%.

Technological Advancements

The LiquidJet Diamond coldplate is an individual GPU coldplate, unlike the LiquidJet Nexus which integrates multiple coldplates. Its internal technology uses a three-dimensional, ultra-short-loop, multi-stage architecture with coolant channels customized for processor power distribution. The key innovation is an integrated diamond wafer heat spreader positioned above GPU hotspots, leveraging diamond's high thermal conductivity (exceeding 20 W/cm·K) compared to copper (approximately 4 W/cm·K).

Comparison and Impact

The original LiquidJet coldplate reduced GPU temperatures by about 12C, leading to a 25% improvement in AI tokens per watt. The LiquidJet Diamond solution further reduces hotspot temperatures by up to 10C, achieving a total 16C-22C reduction in GPU temperatures and a 30%-35% improvement in token efficiency. This allows for handling higher power densities, up to 770 W/cm², compared to 600 W/cm² for the original LiquidJet.