Overclocking
Overclocking is never guaranteed so the presented results may vary from results on other memory kits. I am not recommending overclocking if you do not know what are you doing. High voltages may damage hardware and it will not be covered by warranty.
Overclocking has been performed on the Intel i7 5820K processor and ASUS Rampage V Extreme motherboard with the latest BIOS/UEFI.
At the begining I wanted to check how high we can go without raising default voltage of 1.2V. Maximum was 1333MHz ( DDR4-2666 ) and default timings of 15-15-15-35. This is a good result considering that best memory kits can make not much higher result at 1.2V. This setting was also quite easy to achieve.
Below we can see memory bandwidth in AIDA64 at DDR4-2666 15-15-15-35 and command rate 1N. Of course voltage is 1.2V as I already mentioned.
Next step was raising voltage to 1.38V at which was possible probably the best setting of DDR4-3000 15-15-15-35 and command rate 1N. As we remember from previous DDR4 reviews, most memory kits require about 1.35V to run stable at DDR4-3000. Here we had to set it slightly higher but I think it’s still a good result considering higher memory capacity.
Our review kit couldn’t run at DDR4-3200 regardless of used voltage or timings. Possible seems something around DDR4-3100 when we adjust bclk and memory ratio but also timings have to be more relaxed so DDR4-3000 at CL15 is probably the best option if we are looking the highest performance.