Citing technology media videocardz, NVIDIA's RTX 4090 flagship graphics card will be released as soon as mid July this year This message comes from kopite7kimi, who has accurately disclosed a lot of information about RTX 3090, so it is very reliable.
Kopite7kimi's latest prediction shows that the maximum power of the RTX 4090 is 450W, just like the $1999 RTX 3090 Ti sold by NVIDIA in March, but it provides a considerable number of cores than the previous generation chip: 16128 cores are paired with 24GB gddr6x video memory, with a speed of 21gbps.
Although the number of cores is only 50% more than RTX 3090, thanks to NVIDIA's latest ADA Lovelace architecture, the performance may be doubled.