Home > Servers > Modular Servers > White Papers > Executive summary: Newer Dell EMC PowerEdge Servers Significantly Increase Microsoft SQL Server Performance > Higher Performance
Our testing used the HammerDB benchmarking tool to compare latency, IOPS, and NOPM between a PowerEdge C6420 platform and a PowerEdge C6520 platform. Both servers were configured with identical RAID settings and high-availability (HA) settings on four-node clusters, and each was provisioned to full capacity with 50 GB VMs. Testing showed up to 67 percent lower latency, 3.1x IOPS, and 4.6x NOPM on the newer PowerEdge C6520 with KIOXIA enterprise SAS SSD storage than on the older PowerEdge C6420.1
1 Based on head-to-head comparisons of a Dell EMC™ PowerEdge™ C6520 server versus a PowerEdge C6420 server