Need to know the processors as the 2nd is a 3rd gen i7, the first looks like a 1st gen as it’s only 3 digits in the naming series.
The 2nd is the fastest.
PS Faster processor – you could always buy a cheap monitor to leave set up in the garage/pain den for the laptop to plug into.
The screen size isn’t important tbf. You’ll be trying to hard. just nice to see something moving, or your progress through a pack.
I hate turbo sessions, but having been left with a busted spine two years ago, it’s been a good low impact way of keeping going. I still hate it, but when my back isn’t good enough to take a battering on the MTB, I go on the turbo. I struggle to climb off it. I was a hardened roadie prior to my accident. No road for me now.