Now that the stock benchmarks have been completed, let's see how much farther we can push the Vulcan Z's. At stock, this kit runs at a speed of 3200MHz at a voltage of 1.35v with CL16-18-18-38 timings.
Like all other memory I have overclocked, I left the voltage at stock and slowly increased the speed until the system refused to boot. At stock voltage I managed to get the kit to boot with a 400MHz overclock, giving us a speed of 3600MHz. I tested its stability running some more benchmarks and did a few consecutive runs of Cinebench R15. I did try increasing the voltage of the kit all the way up to 1.5v to achieve a greater overclock but it wouldn’t post.
Now that we have successfully overclocked the Vulcan Z’s to 3600MHz, let’s see our improvements in our read/write/copy speeds. Using the AIDA Cache & Memory Benchmark, we found improvements across the board with the stock Read/Write/Copy being 45.8/45.6/41.2 GBs and the with the overclock applied, we were able to hit 49.1/51.4/44.8 GBs. That’s an increase in performance of approximately 7.2% in read, 12.7% in write, and 8.7% in copy with no change to the Vulcan Z’s voltage. As an added bonus, if you’re running a Ryzen system, overclocking this kit 3600MHz will match perfectly with your infinity fabric clock providing optimal performance.