The memory bandwidth is definitely going to be a factor and bottleneck, but it is still worth having a 1080p screen despite it not being able to achieve 1080p natively in the most demanding titles.
The Rog Ally has similar memory bandwidth and at 10-15W gets a nearly solid 30fps in Starfield 1080p FSR. 900p is generally the optimal resolution on the Rog Ally though.
My guess is Nintendo might be going 1080p because of cost (it'll eventually be cheaper to purchase 1080p screens than 720p screens, due to economies of scale.)
Last edited by sc94597 - on 12 January 2024