If it is quad vs dual K10, then 80% isn't bad. But in the video, they call one machine "Opteron" then the quad "Barcelona"..
http://www.uberpulse.com/us/2007/05/...ce_as_fast.php
And this site which I presume has been more informed than us claims that it's "one with the Barcelona quad core chip and the other with a shipping dual core processor."