AMD is already doing FSR2 and that's going to be quite close to DLSS with time.
I'm swinging more towards AMD again, 6800 in on par with 3070ti - 3080 sometimes out par them (trading blows) and wattage wise is the same as my 5700xt but 30% more performance. Nvidia's pricing is just so out of wack 3070 is £450 the ti is £550 and the 3080 £700. I could go the RTX 3070ti but 8gb will eventually be the minimum spec plus (290 watts). If the driver support for AMD RT gets better over time with FSR 2.0. But then i could go the extra £50 for the 6800xt and undervolt the wattage with more performance.