"After putting the Viper 4 modules through their paces, you can see that clock speed and timings do have an effect on performance when looking at the synthetic scores. Comparing the performance of Patriots Viper 4 3000MHz rated 16GB kit to a pair of 2800MHz rated kits illustrates this perfectly in most of the test cases. When gaming or in the PCMark testing, the additional memory clock speed did not help much in the way of added performance. A key to drive performance upwards with DDR4 modules is to tune the primary timings as tight as you can get them, with the voltage you are comfortable with, and the tune the secondary and third timings to get the most bang for your proverbial buck. Couple that with tuning the cache ratio a bit higher and you continue to increase memory bandwidth to supply the quad channel controller in Intels Latest Xtreme X99 platform and Haswell-E processors.”



Link: OCC