Post by bobaida32 is great for diagnostics and info if you can still find a copy.
I know AIDA32 but it does not give you a numerical value of results of the
tested computer, nor make suggestions nor give you a database of similar
computers.
PCPitsstop does that but I think it has aged and is not up to date, does not
even test in Video 3D mode, only 2 D.