Yes, Michael, every node in the 16-core AMD Opterons has 8 cores. BTW, this information can be obtained by requesting CPUID.8000_001E and inspecting ECX register, 10..8 bits. The count of nodes is encoded in "minus - 1" form, so 0 means 1, 1 means 2, etc. After this, you can divide the logical processor count (CPUID.0000_0001.EBX[23..16]) by the node count, and voila - you get the number of cores per node.