What would you like to accomplish by multiplying the cores by the frequency of the processor? Are you trying to get the GFLOPS (Giga FLoating-point Operations Per Second)?
The performance of Intel® Turbo Boost Technology 2.0 and Intel® Hyper-Threading Technology is dynamic, that means that 1 out of the 10 cores from Intel® Xeon® Processor E5-2660 processor will be capable to reach 3 Ghz when using the Intel® Turbo Boost Technology and your system will do it automatically.
Intel® Hyper-Threading Technology allows each core to perform two tasks simultaneously. This will give a better performance and will complete tasks more quickly.
For additional information you can check the following videos
Hi Sylvia thanks for your reply. I'm a bit of a novice as to how this is calculated This is for a VMware cluster calculation. I'm after the total CPU capacity of the processor when using turbo boost and multi threading. The processor I have has 8 cores @ 2.2 GHz
From what your saying there is no capacity gain from multithreading in regards to total CPU capacity its only the physical core speed that gives you this (not multiplying the speed of the core by 2 threads).
SO, even though I can run 2 threads on one core I'm not actually getting 2 x 2.2 GHz performance I'm getting 2.2GHz (or 3GHz with turbo) distributed between the threads.
With hyperthreading turned on, an 8 core cpu will have a maximum capacity of 1 core running at 3GHz (i.e. your explanantion of one core taking advantage of turbo boost) and 7 cores running at 2.2 GHz. Hope I've made sense of that reply, its probably complete wrong!.
LC2013, you got it!! The only thing that was not cleared is that when using Intel® Turbo Boost Technology 2.0, one core will reach the 3 GHz; the rest of the 7 cores will create a load balance. Intel® Turbo Boost delivers maximum performance when and where you need it.
Here are some videos you may want to see
This article contains some frequently asked questions (FAQ) if you want to check it out. http://www.intel.com/support/processors/sb/CS-029908.htm