Sisoft Sandra 2007 (Memory Bandwidth)

1600MHz 7-7-7-18

1600MHz 6-5-5-14

 

Sisoft Sandra 2007 (Memory Latency)

1600MHz 7-7-7-18

1600MHz 6-5-5-14

Sisoft Sandra is a very popular synthetic benchmark which is ideal for testing the memory bandwidth and latency of any computer. Of course, as Sandra itself warns the user, it is a simple synthetic benchmark which runs a set series of tests and may not tally with real world performance. Higher bandwidth results are better and lower latency results are better.

Here we can see that DDR-3 in a highly overclocked system is finally showing some hardcore results. Running the set with 6-5-5 1T timings at 1600MHz gave us bandwidth just shy of 10000MB/s. At stock timings and 2T command our results drop down to 9000MB/s, a result that is extremely hard to achieve with DDR2.

Everest Ultimate Edition

Everest is also a very popular synthetic benchmark. Despite its similarities with Sandra, Everest is running very simple tests and provides different results which are close to the maximum possible theoretical speed of the system. Higher read, write and copy speeds give better results as do lower latency figures.

Memory Copy: 1600MHz 7-7-7-18

Memory Latency: 1600MHz 7-7-7-18

Memory Read: 1600MHz 7-7-7-18

Memory Write: 1600MHz 7-7-7-18

 

Memory Copy: 1600MHz 6-5-5-14

Memory Latency: 1600MHz 6-5-5-14

Memory Read: 1600MHz 6-5-5-14

Memory Write: 1600MHz 6-5-5-14

Since Everest is a pure synthetic benchmark, it is heavily affected by the timings of the RAM. Here the tight 6-5-5 timings give the read speed an increase of 16%, which improves the copy speed while lowering latency, however the write speed which is heavily dependent on the CPU gets only a very small increase.