According to credible rumors, Nvidia is working on a refresh of its flagship RTX 3090 graphics card. Nvidia already released slightly upgraded SUPER versions of its RTX 20 series almost 1 year after launch. The GeForce RTX 3090 SUPER is supposed to have a fully utilized GA102 GPU core with a faster clock rate, which will mainly be responsible for a better performance compared to the standard model, since the hardware is probably only minimally upgraded: 84 instead of 82 shader multiprocessors and 10,752 instead of 10,496 CUDA cores.
The TGP (Total Graphics Power) is supposed to increase from the current 350 watts to up to 400 - possibly even 450 watts - which would require significantly improved cooling of the additional waste heat if the cooling system is not to become permanently louder.

Nvidia GeForce RTX 3090
The GeForce RTX 3090 SUPER will probably also have 24 GB VRAM, but a faster clock will possibly increase the memory bandwidth to 20 to 21 Gbit/s (RTX 3090: 19.5 Gbit/s), which would result in a bandwidth of 1 TB/s in the best case.
Thus, the overall performance of the GeForce RTX 3090 SUPER will probably be around 5% higher than the RTX 3090 - quite in line with previous SUPER upgrades. Nvidia is expected to start production this quarter, and the new model will then hit the market in the first half of 2022, replacing the old one at the previous price.
Potential buyers of an RTX 3090 SUPER, however, will have to ask themselves, as they did with the current RTX 3090 model, whether the much higher street price (currently around 600 Euros) compared to an RTX 3080 Ti will be worth the minimal performance gain.