You could say that this is a medium poly stage model these days but surely not high as it dates from 2005-2006. It was a high standard model in that periode like Julz mentioned but it isn't anymore
Btw, I find broozar's comment quite right indeed since HD is about a better screen resolution thus resulting in a better screen visualisation or detail and not about a higher amount if polies.

Cheers

Frazzle