Now that the reviews are out, you can have a better idea.
Raster:
Ray Tracing:
https://www.techspot.com/review/2961-amd-radeon-9070-xt/
FSR4 is between DLSS 3 and DLSS 4 essentially.
Personally, I wouldn't touch 5070 with a 10ft pole as it's bad long term with the 12GB of Vram. If your budget is $600, then 9070XT no question. If you can go up to $750-$800 and find a 5070 Ti for around that price, 5070 Ti is faster all around. DLSS and Reflex also has a lot more game support than FSR4 and Anti-Lag 2. Nvidia traditionally also had longer driver support than Radeon but that shouldn't be the main determining factor. So it depends really.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850