According to rumors, Nvidia’s new generation graphics cards will consume much more power. Moore’s Law is Dead, and Igor’s Lab, among others, claims the alleged RTX 4090 will have a 600-watt tbp, a third more than the RTX 3090 Ti’s 450W. In some cases, it is said to be no less than 850 watts, although so far it seems unlikely.
According to Kopite7kimi, Nvidia is actually experimenting with a high-end AD102-based graphics card that will consume no less than 900 watts. This test version is said to come with 48GB of 24Gbps memory and two 12VHPWR power plugs. Given the large amount of gddr6x, it’s possible that Team green will want to re-introduce the Titan cards. The leaker adds that it is not certain that Nvidia will release this model.
Also, Kopite7kimi shared more information about the RTX 4080 and 4070. The first uses the AD103 chip with a 16GB gddr6x, while its younger brother combines the AD104 GPU with a 12GB gddr6 and 300 watts of power consumption. In the case of the RTX 4080, Twitter user mentions a similar tgp with the Ampere-based GA102. Presumably this refers to the RTX 3090 Ti with 450 watts tbp using the fully enabled GA102 GPU.
Source: Hardware Info