It analyzes your system, takes the specs and then rates them compared to other PC's it has scanned. (does this in the web browser). I used it a while ago and want to use it on my buds b/c he is computer illiterate and doesn't know whats in his own machine. Found it, its pcpitstop.com
Just so you know, heres another good site (even though it doesnt do exactly what you described.) http://www.systemrequirementslab.com/referrer/srtest
