Dual core Celeron laptops ?

if just the use case is just a monitoring display a cheap android tablet will be even more power efficient and more portable.

Maybe, but I need something x86 and not ARM, and must run Linux.

Secondly, for those wanting to buy it, has expandable single RAM slot. So its far better than the solder stuff. Had a hunch, basis the earlier A311 but turned out to be right.