I read that as what the 4080 is to the 4090, a huge difference in performance. So am fully expecting the 5090 to once again be the halo card of the lineup, with the 5080 continuing where the 4080 left off.
Once again, I can't see the 5080 being anything less than 4090 pricing, leaving the 5090 to hit the £2k mark as many have predicted.
The 5080 needs to have over 16GB VRAM either way, it will be a 4K card and we have games that use nearly 20GB of VRAM even at 3440x1440 - If it has anything less than 18GB VRAM then that's a duff move. Though we've seen nvidia walk back their mistakes in the past in terms of VRAM and "UN-announcing" a card so who knows what they will goof up with 50 series.