One for tech folks

I have a bit of banter with a guy who uses camera with a 230,000 pixel display and I have a 920,000 display.

He's always telling me how sharp his back looks. well my view to this (and im probably wrong) is because when we both zoomed in to near the same ratio of the same image, my back displays 3 times the amount of infomation than his so 'artefacts' shown in my display would not show as much in his display as its more compact thus looking technically sharper. Would this technically be true? oh and the MP is almost the same.

Oh and I realise 920,00 and 230,00 is not technically right either because of RGB but that's not the issue here.

Regards

Gi