https://wccftech.com/nvidia-geforce-rtx-3080-goes-all-passive-cooling-87c-temps-turemetal-up10-chassis/

NVIDIA's GeForce RTX 3080 graphics card has been put to the test in a fully passive-cooled PC chassis by Turemetal's Founder, Mical Wong. The company which designs passively-cooled PC chassis has showcased some pretty impressive feats in the past but cooling down a 320 Watt graphics card with no air cooling is just crazy.

Prior to the NVIDIA GeForce RTX 3080 demonstration, Turemetal showed its UP10 fanless case running an AMD EPYC CPU running alongside a GeForce RTX 2070 graphics card. Even with no active cooling, the chassis was able to maintain decent temperatures for both the CPU & GPU.