Graphics card recommendations

I'm looking to upgrade my Windows laptop soon and trying to decide between which graphics card to get.

The price difference between the two laptops I'm looking at is about $350 (identical except for the graphics card - both Ultra 9 275HX 24-core processors, 64GB of RAM and 2TB SSDs).

The two cards are the Nvidia RTX 5070 Ti and RTX 5080.

The major issue I have with my current laptop is how slow it is with AI Denoise. I often denoise hundreds of images from an event (need to shoot high ISO, no I cannot shoot at a lower ISO). Right now I have to do about 50 at a time and that takes a good 15 minutes (mine has the 3050). It tends to add a few days to my getting the photos out to people.

Is there a huge difference in speed between these two cards? Is the 5080 worth the $350 higher price tag? I will spend it if I need to (I do this semi-professionally) but I don't want to if it's really not much of a jump in speed.