That's not even the lowest resolution, so I think pretty much anybody could run it.
It looks better than Last Remnant did too. I had to play that in a tiny window zoomed in with the magnifier application.

It was practically on par with a PS1 game. --the things one will stoop to out of desperation!
I was fine with the graphics until seeing some HD Youtube vids. Then I felt like a complete tool.
I've been on the fence about playting The Witcher for two years now, becaue I CAN play it, but it looks so good in higher resolutions (with heavy lag) that I'd rather wait 'til I have a decent PC. (watching a character's breasts jiggle and sway in 1360x768 and then sit there like cardboard in 800x600 was really discouraging)