https://wccftech.com/nvidia-geforce-rtx-4090-in-august-rtx-4080-in-september-rtx-4070-graphics-card-in-october-launch-rumor/

NVIDIA's next-gen gaming lineup including the GeForce RTX 4090, RTX 4080, and RTX 4070 graphics cards are expected to launch in Q3 & Q4 2022, as per the latest rumor from Videocardz.

Recently, it was revealed by leaker, Kopite7kimi, that NVIDIA was going to launch its GeForce RTX 4090 first followed by GeForce RTX 4080 and RTX 4070. Now more reports are coming in that this schedule might indeed be true. It looks like the GeForce RTX 40 series launch event may indeed be hosted around mid-July as per the previous rumors. Do note that this will just be an announcement while the actual availability for each respective graphics card is planned between Q3 and Q4 2022.