DDR3 memory technology

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Balancing installed memory across processors ensures consistent performance for all threads running
on the server. If you have installed more memory on one processor, threads running on that processor
will achieve significantly higher performance than threads on the other processor. A performance
imbalance can degrade overall system performance, particularly in virtualization environments.
The white paper DDR3 Configuration Recommendations for HP ProLiant Gen8 servers, downloadable from
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c03293145/c03293145.pdf, provides a
detailed discussion of DDR3 memory configuration considerations for HP ProLiant Gen8 servers.
Conclusion
DDR3 memory is the next step forward in memory technology for industry standard servers. It provides
improved raw memory transfer speeds compared to DDR2. Combined with the NUMA architectures,
DDR3 helps to deliver major improvements in server memory throughput and latency in HP ProLiant
servers. With the introduction of ProLiant Gen8 servers, DDR3 continues to evolve—supporting faster
memory speeds and bigger server memory footprints than ever before. HP SmartMemory for ProLiant
Gen8 servers delivers additional improvement in memory performance that is not available with 3
rd
party DDR3 memory.