I'm not buying into this.
These processors all have different HyperTransport/bus speeds, not to mention the completely different memory modules in each setup. For example, this is in their "test setup":
DDR2 RAM (Dual-Channel)4 x 2 GB DDR2-800, Chaintech Apogee AU2G732-12GH001, Mushkin Acsent XP2
DDR3 RAM (Dual-Channel)2 x 4 GB DDR3-1333, Kingston HyperX KHX1600C9D3K2/8GX
DDR3 RAM (Triple-Channel)3 x 4 GB DDR3-1333, Kingston HyperX KHX1600C9D3K2/8GX
They're using 4 DDR2 memory modules in their older setups, which would stress the crap out of the IMC on both of the older AMD dual cores, yet they're using the optimal 3 modules for the tri-channel 1366 CPUs and 2 modules for dual-channel CPUs. That renders this article worthless, as well as the fact that there are even more variables to take into account, like those I mentioned above.
Also I don't see the Kuma in this comparison, which was a beast competing with quad cores/high end dual cores at the time in some applications. It beat my 965 BE at a higher clockspeed from what I remember, it should've replaced the 5400+ BE in this comparison. So wish I still had it, probably the best dual core I've ever used.Edited by Am* - 7/26/11 at 7:13pm