Overclocking Results



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For our memory overclocking tests we are usually interested in two main elements: how well the memory scales with additional voltage and how versatile it is at overclocking with different timings. However, we quickly found out that this memory kit doesn't really benefit from going above 1.40V and in fact sometimes worsened overclockability depending on timings. So we decided to simply increase the voltage from the manufacturer specified 1.35V to 1.40V, and put all our efforts on timings scalability instead.In order to make sure that there weren't any possible CPU-related bottlenecks, the CPU Cache Voltage was set to 1.30V and the CPU System Agent Voltage set to 1.25V. We focused on four basic timing configurations (12-12-12 / 13-13-13 / 14-14-14 / 15-15-15) all with a 1T command rate for optimal performance.With the pleasantries out of the way, let's get to the fun stuff.As you can see above, the results from this kit were very strong across the board. Starting off with the default 15-15-15 timings, this memory kit showed a good amount of extra headroom. Not only were we almost able to hit slightly above DDR4-3100, but we were able to do so with the aggressive 1T command rate, which is much more strenuous than the 2T timing that G.Skill rates this kit for. As you will see at the very bottom of this page, if you do elect to go the 2T route this kit gets even more impressive, but at the expense of overall system performance.When tightening the timings to 14-14-14 there is a pretty significant drop down to DDR4-2827, however, the drop is much less pronounced when tightening further to 13-13-13. This suggests to us that this kit should be capable of some interesting speeds at less 'conventional' timings like 13-14-14. Setting the timings to 12-12-12 really knocks down the RAM speed considerably, putting it squarely in DDR3 territory.As mentioned above, we stuck with 1.40Vdimm (up from 1.35V default) because anything above that didn't really gain us any appreciable frequency headroom and in fact caused benchmarking errors more quickly and more often.These screenshots are just to prove that we did indeed achieve the overclocks listed, and that they were stable enough to pass a series of mainstream benchmarking and stress testing applications.Since all of these overclocks were done with the 1T command rate, we decided to see what this high-end G.Skill kit was capable of at 2T, which is what this particular model is rated for. As you will see below, it is quite impressive.DDR4-3168 15-15-15-35-2T is pretty damn impressive, is a very solid amount of headroom above what the F4-3000C15Q-16GRR is rated at. Believe it or not, we actually tested each stick individually, and there is really only one module holding us back here, all the other three are capable of an even more impressive DDR4-3232 at these timings. Does this actually translate to worthwhile day-to-day performance? Well check out the following two pages to see our benchmarking results withdifferent timing configurations.