(Sorry for editing the message while you were replying, I'm not going to do that again). And what does a screenshot prove?
What does this have to do with eyesight?
Please note DPI means two things here. A screen has a "real" DPI, basically "#pixels/#inchs". A font rendered also has a DPI setting, which instructs it how many pixels tall a X pt font will be.
The real DPI of your eeePC 901 is lower than the N810.
The font renderer DPI (let's call it "Evince's zoom") is higher in your 1024 screenshot than your 800 one.
Sorry, but I have to say yes.
You think the smudginess you see can be fixed by adding more pixels.
Can you read a 8pt at the default 96dpi setting in the tablet? I hardly can.
Now try the same experiment on your eeePC.