Overclocking
Overclocking
Overclocking and tweaking then. Always invest in good hardware by the way (MOBO/PSU/Memory/Cooling), the cheaper motherboards are often not well tuned for enthusiast overclocking. Also get yourself a good power supply and proper processor cooling. Overclocking with a more core processor (doesn't matter if that is Intel or AMD) is far more difficult than you'd expect it to be.
Overclocking multi-core on a high clock frequency is a relatively easy to do job, and can be best managed from the BIOS. You will need proper cooling though. Now, we can manage 4500 MHz on all ten cores, it's just that the temps fly out of control. We lowered our all-core OC to 4300 Mhz on all cores. With still too high temps at the 100 Degrees C marker!
BIOS Overclocking
The Guru3D reader-base overclocks mostly from the BIOS to try and find the maximum stable limit. The generic overclock procedure for multiplier based overclocking is as follows:
- Leave base clock (bus) for what it is right now (100 MHz)
- Set the per core multiplier to a maximum of your liking:
- Example 1: 100MHz x 43 = 4500 MHz
- Example 2: 125MHz x 35 = 4375 MHz
- Increase CPU voltage; though AUTO often works fine on many motherboards you can do it manually as well. Start at 1.30 volts and work your way upwards into a state of equilibrium in perf and cooling temps.
- Make sure your processor is properly cooled by adding voltage = more heat
- Save and Exit BIOS / UEFI
In our case we got all cores running at 4500 MHz, however, this results in tremendous power consumption and heat levels. Our Corsair LCS cooler is not capable of cooling the proc enough as shown above. In the end, we settled for a x43 multiplier, ~1.25 Volts and obviously we enabled the XMP profile on the memory for quad-channel 3600 MHz.
Power Consumption
Adding extra voltage on the CPU for the OC also has an extra adverse effect on the overall energy consumption. Below, power consumption example of another system we recently tested. The power behavior changes dramatically when overclocked.
Some OC Scores
Prime at defaults sits at 119 Seconds on 1M workloads, you shaved off ~6 seconds with this tweak.
Tweaked CPU - (GPU clocked default)
