I'm looking at building a new PC and the GPUs I was looking at are the 7800 XT (~£490), the 7900 GRE (£540), and the 4070 Super (~£600).

The Radeon cards both have 16 GB VRAM compared to the 12 GB of the 4070 Super, so as a side question, should this be something I really take into concern when choosing?

My main question is that are the Nvidia exclusive features, DLSS vs FSR, Framegen etc worth the premium? Benchmarks seem to show that the 7800 XT performs a little worse than the other two which seem to have almost comparable performance so these features really seem to be the big difference maker.

I'm looking to use this PC mainly for gaming at 1440p and I honestly don't expect that I'll be using ray tracing too much.

Additionally I haven't owned a AMD GPU before (been using a 970 for the last 10 years and finally decided that it might not cut it anymore) and I have heard that the 7000 series has had some stability issues in the past so if anyone could speak to this it would be appreciated.

Thanks!