We’ve recently changed how we test overclocking performance. With newer BIOS and software becoming increasingly more capable of doing overclocking, it seems pertinent to also include those results.
Overclocking – BIOS
The Aorus Z270X-Gaming 8 BIOS offers simple CPU overclocking, power consumption tuning, and fan tuning via its EZ Tuning Wizard. Once clicked, EZ Tuning Wizard reboots and does its thing. The only user input that’s required is choosing the computer’s usage, choosing the cooling solution, and clicking next.
The BIOS automatically overclocked the CPU to 4.08 GHz (40 x 102 MHz). The 102 MHz BCLK also meant that the memory clock. Oddly, the base memory multiplier was change to 24 from 30, resulting in 2488 Mhz. CPU voltage erred on the safety side.
Overclocking – Software
Gigabyte’ own EasyTune took care of the overclocking duties here via its AutoTuning program. There are no real options to choose from, just click the button and let the program to its work.
AutoTuning automatically overclocked our Core i7 7700K to 4.8GHz (48 x 100 MHz ). This was a bit less than we expected, especially with a 5 GHz option available via the BIOS.
Overclocking – Manual
Once the default settings were in, it was now time to see how high I could push the CPU with our water cooling system and have it still be 100% stable. All cores and Hyperthreading were still enabled. The memory was left at XMP default, the Line Load Calibration was changed from setting 1 to setting 7, EZ System Tuning (system power consumption profile) was set to Performance, and the fans were set to maximum.
We managed to squeeze 5.3 GHz out of our Core i7 7700K with the Aorus Z270X-Gaming 8. The voltage is very high at 1.536v, but this wasn’t unexpected. There seemed to be more headroom, however we weren’t able to keep the CPU temperatures in check above this speed.
Out of the 3 solutions, manual overclocking wins, but only if you’re adept at overclocking and you want to achieve the highest results. Simply selecting the appropriate frequency via the BIOS is probably the best solution for most users. It’s easy and fairly foolproof. AutoTuning via EasyTune was less than impressive. It’s easy enough, but didn’t yield the results we expected.