Look at this engine rating list which compares all the versions of Stockfish.
After the name of each engine we can see one of these three things:
- Nothing, which probably means: 1CPU
And it seems that the same engine is stronger by roughly 80 Elo when run on 4CPU instead of 1CPU.
I'm not exactly sure what the number of "CPU" is... Is it related to the number of cores?
I would like to know if my computer is 1CPU, 2CPU or 4CPU.
Here is the specifications of my computer (which I found in Control Panel\System and Security\System):
- Alienware M18x
- Windows 8.1
- Processor: Intel(R) Core(TM) i7-3740QM CPU @ 2.70 GHz 2.70 GHz
- Installed memory (RAM): 16.0 GB
- System type: 64-bit operating system, x64-based processor
So is my computer 1CPU, 2CPU or 4CPU ?