Radeon RX 7900 XTX has a defective vapour chamber
 

Total recall might be necessary

Overclocking expert Roman "der8auer" Hartung believes he has found the cause of the Radeon RX 7900 XTX graphics card's overheating issues, and it might force Team Red to recall one of its based graphics cards.

According to Tom’s Hardware, Hartung purchased four reference Radeon RX 7900 XTX graphics cards to get to the root of the problem. He discovered that a horizontal installation contributed to improving temperatures. The orientation yielded improvement up to 20 degrees Celsius. The graphics cards exhibited the same thermal throttling after a minute of the burn-in test. So while a horizontal position makes the Radeon RX 7900 XTX run cooler and quieter, the overheating problem was inevitable.

https://fudzilla.com/news/graphics/5...vapour-chamber