How many CPU sockets should I use in a server ?


You need to decide whether to invest in a server with multiple CPU sockets or more powerful CPUs inside a single socket.

Because of Non-Uniform Memory Access (NUMA), we recommend to choose CPUs with more cores before you expand into more CPU sockets. NUMA causes memory access latency to depend upon the physical location of the memory, which makes performance unpredictable. All other things being equal, you will experience better performance with a single 16-core CPU than two 8-core CPUs or four 4-core CPUs.

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