It all varies from card to card, as not all gpus were created equal. However if you compare before and after power usage (Watt meter only! Software measuring is not correct!):
- Set core clock to +150Mhz, Mem clock to + whatever your hardware allows (at least +500Mhz). This is your basic overclock good enough for almost any coin. Set TDP to your desired value - 50% for best power usage and less heat, 100% or more for highest hashrate and heat/noise. Optimal setting is between 50% and 75%.
- Then open MSIAB, click settings, put a check on the "voltage monitoring" check box and fire up your software miner.
- Write down total rig power usage, on your WATT meter and current GPU core voltage value.
- Click on the 3 bars in front of the core clock slider in MSIAB.
- Select the 1000miliVolt dot and move it upwards until it reaches 2140Mhz.
- Put the curve window away (but keep it open) so you can see MSIAB main window. Then lower the core clock to -400Mhz.
- Return to voltage curve window, select first dot on the left and raise it to 1596Mhz (any value lower than 1600Mhz).
- Watch the main window's Vcore value of 1050mV(default) and click Apply (check symbol).
- The card should downvolt itself from 1050mV to 800mV. The GPU temperature will drop with at least 5 degrees C (if fan speed is constant).
- Note: lower or increase GPU TDP, otherwise this limit might not work on TDP 100% for example.
Experimenting with the 1000mV dot value by using the dots can give even better results.
If you have 1070 or 1080, please share your results!!
If this guide helped you save you money on electricity and heat: ETH 0x288677B90E4F22737c2bCC0ae87e6FFE2d63007E
Update: Now there is a more efficient way to undervolt and overclock. See here
Update: Now there is a more efficient way to undervolt and overclock. See here
