What laptop has that much VRAM and RAM for $3500 with good/okay-ish Linux support? I was looking to upgrade my asus zephyrus g14 from 2021 and things were looking very expensive. Decided to just keep it chugging along for another year.

Then again, I was looking in the UK, maybe prices are extra inflated there.

A3B-35B is better suited for laptops with enough VRAM/RAM. This dense model however will be bandwidth limited on most cards.

The 5090RTX mobile sits at 896GB/s, as opposed to the 1.8TB/s of the 5090 desktop and most mobile chips have way smaller bandwith than that, so speeds won't be incredible across the board like with Desktop computers.