Quote Originally Posted by Dresdenboy View Post
A quick and raw estimation of single threaded performance for Zambezi based on the 50% number given for Interlagos (just to show, what has to be counted in at the least):

Relative_perf_1_thread_to_AMD_fam_10h = (Perf_Magny_Cours*1.5 * 12 / 16) * Freq_ratio_of_half_#_of_Cores * Perf_boost_single_core_in_Module * Perf_boost_single_module_on_chip

Freq_ratio_of_half_#_of_Cores = 3.2/2.3 = 1.39
Perf_Magny_Cours = 1
Perf_boost_single_core_in_Module = 1.11 (while going from 90% back to 100%)
Perf_boost_single_module_on_chip = 1.3 (some cheap turbo)

Relative_perf_1_thread_to_AMD_fam_10h = (1 * 1.5 * 12/16) * 1.39 * 1.11 * 1.3 = 2.26

So with some frequency scaling a Zambezi core will be about 126% faster than a core running in a 2.3GHz MC without turbo. This would equal a 5.2GHz PhII core.

This is just speculation. Anyone is invited to check this.
Freq_ratio_of_half_#_of_Cores = 3.2/2.3 = 1.39

Does 3.2 means Interlagos freq is 3.2ghz? Is it a few too optimistic?