You can get quite a bit of info using the standard DBP commands (check out the system commands and 3D Statistic in the F1/help file)but for other information print out the registry values..
(Credit goes to Ric for this info)
print get registry$("HARDWAREDESCRIPTIONSystemCentralProcessor","ProcessorNameString")
print get registry$("HARDWAREDESCRIPTIONSystemCentralProcessor","VendorIdentifier")
print get registry("HARDWAREDESCRIPTIONSystemCentralProcessor","~MHz")
print get registry$("HARDWAREDESCRIPTIONSystemCentralProcessor","Identifier")
wait key
Chech out this DBP CPU/GPU speed benchmark I made here
http://forum.thegamecreators.com/?m=forum_view&t=101716&b=5