Oliverda Its actually 5.26x Thuban 1100t
Don't you feel any difference between 4.5x and 6.72x?
Yeah I feel it and? one is HT(SMT) the other is module+SMT
Don't you feel any difference between 3.67x and 4.5x? The same 4 core chip.
Anyway the six-core Phenom II X6 speedup is only around 5.26x.
In the same link you have other AMD cpu's or in this http://techreport.com/articles.x/20188/14
x4 910e 3.93x
x4 640 3.92x
x3 455 2.92x
x2 565 1.96x
Its evident the efficiency for some reason is lower in Thuban than in Deneb or Heka or Regor.

BTW Cinebench uses FPU and that is one in BD shared between 2 integers yet it has also HT for higher utilization and that's the reason why the speed up is so high.

P.S. what about the rest of my post? Do you agree or not.