The SoC is an i.MX 8M. [1] The internal display is almost certainly connected via DSI, via which the SoC could theoretically output 4k signals while it's supposed to be able to decode h.264 and h.265 at that resolution in 30 respectively 60 fps. [2]

It would barely notice the workload of outputting the largely static content of a desktop at 1440x720.


[1] https://puri.sm/posts/librem5-progress-report-3/
[2] https://www.nxp.com/products/process...rs:IMX8-SERIES