Monitor resolution question

[Phil]

Thank you for reading this.

I have Real Flight, a model aeroplane simulator, running on a laptop 
with a screen resolution of 1280 x 800 pixels and it's a real struggle 
to fly almost any plane because they are very small and pixelated except 
when viewed close up on the runway. HDMI input to the TV results in a 
larger picture with, of course, larger pixels so there isn't much 
improvement there.

I'm considering a Shuttle XPC computer. Its integrated Intel graphics 
has a resolution of 1920 x 1200 pixels. I'm also considering an 21.5" LG 
led monitor which has a resolution of 1920 x 1080. I calculate that both 
monitors have a DPI of 96.

So my question is, would I see a remarkable difference in flying ease 
between the two systems? I'm very reluctant to take a punt without 
knowing if the cost is likely to be worthwhile.

-- 
Regards,
Phil