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Whitepaper – Balanced Memory with 2nd Generation Intel® Xeon Scalable Processors
© 2019 Dell Inc. or its subsidiaries.
Internal Use - Confidential
4.4 Identical Sockets
A CPU socket must have identical memory subsystems meeting guidelines 4.2 and
4.3. A physical server should also have identically configured CPU sockets. As seen in
Figure 5, when only one unique memory configuration exists across all sockets within a
server, memory bandwidth is further optimized because the CPU and memory
controllers can command information to be distributed across many more channels.
This principle is consistent when applied to even broader scopes; data centers that
have identical servers with identical balanced memory subsystems will inherit
increased memory performance.
Figure 5: One interleave set is being leveraged across twenty-four channels (four sockets) because they
are all identical, balanced configurations