Memory Benchmarks
AIDA64
At default, Auto DDR4-2667 we get about 38GB/s of memory bandwidth read, but bumping up to the rated speed of the RAM kit at DDR4-3600 D.O.C.P. that bandwidth increases to 51GB/s, a 34% improvement in memory bandwidth. Our stable overclock with the same timings at DDR4-3933 brings that up to 55GB/s, an extra 8% memory bandwidth improvement.
Memory write performance at default, Auto DDR4-2667 is 21GB/s, and turning on D.O.C.P. profile to DDR4-3600 brings that up to 28GB/s, a 35% increase in bandwidth. Overclocking the RAM at the same timings brings that up to 31GB/s, another 9% bump in bandwidth.
Memory copy performance is 35GB/s at DDR4-2667, but at DDR4-3600 that bumps it up to 45GB/s a 27% performance increase. Overclocking the RAM brings that up another 9%.
SiSoftware Sandra 2021
In SiSoftware Sandra 2021 we are reporting the Aggregate Memory Performance, which is reported in GB/s. At Default, Auto DDR4-2667 the memory performance is 28GB/s according to this benchmark. Setting D.O.C.P. at DDR4-3600 brings performance up to 37GB/s which is a 30% performance improvement. Further overclocking the RAM to DDR4-3933 at the same timings brings it up to 39GB/s, another 6% performance boost.
PassMark PerformanceTEST
We are using PassMark’s PerformanceTEST Memory Mark benchmark to report the overall score. This score is derived from testing database operations, memory read cached and uncached, available RAM, memory threaded, memory write, and memory latency performance metrics. At default, Auto DDR4-2667 the score is 2792 when we turn on D.O.C.P. and run the memory at the rated DDR4-3600 that score increases to 3440 which is a 23% improvement. Further overclocking the RAM to DDR4-3933 at the same timings brings that score to 3594 which is another 4% improvement.
Memory Latency
AIDA64
Memory latency is being reported in nanoseconds, and the lower score is better. This is a general workload type of RAM latency testing. At Default, Auto DDR4-2667 with the awful CAS 20 settings, latency is around 80ns. When we enable the D.O.C.P. profile at DDR4-3600 with the default CL16 timings on this RAM kit, that drops to a much better 60ns. That’s an improvement of 23% better latency. When we overclock the RAM to DDR4-3933 and keep the same CL16 timings, that latency improves further by 57ns.
PassMark PerformanceTEST
In this PassMark PerformanceTEST Memory Latency test, we are testing a Random performance test across the RAM. This is a hard test for the RAM latency, as it reads and writes randomly across areas of the RAM, it’s a worst-case scenario type of torture testing for the RAM. Latency starts off at 98ns at Default, Auto DDR4-2667 with the CL20 timings. When we enable D.O.C.P. at DDR4-3600 with the CL16 timings of the RAM that is reduced quite a bit down to 78ns, a good 20ns reduction. Then, when we overclock the RAM to DDR4-3933 with the same CL16 timings that are further reduced to 74ns, a 4ns reduction.