When it comes to graphics card leaks and rumors, there are a number of fairly-reliable sources. Two of the most prolific producers of recent rumors have been Twitter users @kopite7kimi and @Greymon55. Regular HotHardware readers are sure to be familiar with these names; we’ve reported on their rumors many times.
Regarding NVIDIA’s next-generation

Source: Hot Hardware – Rumor Suggests NVIDIA’s Beastly GeForce RTX 4090 Ti Lovelace GPU Could Demand Over 800W