https://wccftech.com/nvidia-rtx-3090-gpu-tgp-350w/

A mock up of the rumored RTX 3090 graphics card.

NVIDIA's next-generation RTX 3090 flagship GPU will have a significantly increased TGP of up to 350Ws. The information comes from Igor, who has been an incredibly reliable source of leaks in the past and we have also independently confirmed the same. In other words, the TGP and its breakdown is not a rumor, although we are still not a 100% sure on the nomenclature (NVIDIA may decide to call it something other than an RTX 3090 or play around etc).