4080 is still a 16gb part, and still the 2nd fastest part Nvidia sell at consumer level (its a 1200 dollar part). The 3090 (for however long it remains on sale) and the 4090 are outliers.
The obvious counter point is an M2 MacBook in 14/16 inch size, where wallet permitting you can have up to 96gb of unified memory too...
I simply chose the Air in my example earlier because its incredible you can have that level of performance in ostensibly an entry level passively cooled machine.