It is called thread migration (or, more abstractly, process migration) and high memory clock speeds favor environments where this is expected to occur frequentl

It is called thread migration (or, more abstractly, process migration) and high memory clock speeds favor environments where this is expected to occur frequently. As such, there is significant performance degradation when high-powered CPUs are paired with low-powered RAM. Incidentally, most OEMs/ODMs are susceptible to this as they frequently use high-powered CPUs as advertisement anchors but cut costs with low-powered RAM. It is the source of unpleasant lag spikes for end-users and, as mentioned elsewhere, they are difficult to work around.