TechPowerUp checked out the AMD Radeon RX 6950 XT Reference Design
A quote from the article:
The AMD Radeon RX 6950 XT Reference Design card not only looks great, but also achieves excellent performance, matching the GeForce RTX 3090, at much better pricing. AMD's thermal solution works very well, too, thanks to good optimization and surprisingly good energy efficiency.AMD Radeon RX 6950 XT Reference Design Review