RE: Computer configuration

Which one is more preferable 1 CPU with 32 cores or 2 CPU with 16 cores each? Do you have some suggestion?

Ann Asked on 6 11 月, 2024 in FAQ.
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1 Answers
The performance is not determine by 1 or 2CPU,  it depends on the number of memory channels and whether the memory is DDR4 or DDR5.
When you decide which is better you will first need to know how many memory channels the CPU have and what kind of Memory type (DDR4 or DDR5) they used.
(each DDR4 support 2 cores, DDR5 support 4 core)
Take this case as an example (theoretically):
There would be two possibilities for each, the main point is the channel ratio
1 CPU  32core           8 memory channels of DDR5      8*4 = 32 core                    8 memory channels /32core = 0.25
                                       16memory channels of DDR4    16*2 = 32 core                 16 memory channels /32core = 0.5          v  higher ratio will be better
2CPU  32core           4 memory channels of DDR5      4*4 = 16 core
                                        4 memory channels of DDR5      4*4 = 16 core                4+4 memory channels /32core = 0.25
                                       8 memory channels of DDR4       8*2 = 16 core                        
                                       8 memory channels of DDR4       8*2 = 16 core                8+8 memory channels /32core = 0.5          v higher ratio will be better
Back to your question if the ratio is same in both condition, 1CPU would be better because it don’t need to communicate between each other.
Answered on 6 11 月, 2024.
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