Overclocking means increase frequencies and memory speeds compared to their official specifications. We highly recommend overclocking your graphics cards as it will increase your earnings.
Increasing the core and memory frequencies will increase the hashrate of your graphics card. Core base frequency RTX 2060 gives 1365 MHz... In other words, this means that impulses of electricity pass through the graphics card chip at a speed 1365000000 times per second. Increasing this value will increase the rate at which electricity can pass through the chip.
In addition, you can reduce the power consumption of the video card. It is a will reduce your electricity bills... In addition to reducing electricity costs, reducing electricity consumption also will lower the temperature of the video cardas less energy will be converted to heat.
The best way to demonstrate this is to show you some overclocking examples. We will use NVIDIA RTX 2060 and we will only measure the algorithm for mining Dagger Hashimoto (Ethereum).
You can use for overclocking MSI Afterburner, which is one of the most popular tools for overclocking video cards.
First of all, we tested the video card with the default settings (+0 Core Clock / +0 Memory Clock)
As you can see from the image above, the RTX 2060 was mining at about 28 MH / s with power consumption 130 W and temperature 69 ° C.
Next, we used the recommended overclocking settings for NVIDIA RTX 2060 for mining with the DaggerHashimoto algorithm. (+0 Core Clock / +600 Memory Clock)
As you can see from the image above, we have increased the performance by 2.5 MH / s - almost on 9%! But the temperature rose to 72°C, and the power consumption is now 140 W... That's why we need to lower Power Limit at least until 75%.
Please note that the power limit can be reduced even more, but this will ultimately affect the hash rate. You need to find a middle ground.
As you can see from the image above, the power consumption has dropped to approximately 124 W, and the temperature - up to 68°C, while hashrate remained unchanged.
Let's summarize
On stock settings with power consumption 130 W mining speed was 28 MH / s... We would get about 0.46 EUR / day gross profit or 0.15 EUR / day clean at an electricity price of 0.1 EUR / kWh.
Overclocking the graphics card resulted in power consumption 124 W and 30.6 MH / s... We would get about 0.50 EUR / day gross profit or 0.20 EUR / day at an electricity price of 0.1 EUR / kWh.
It's over 28% difference between stock settings and overclocked settings. 0.05 EUR / day seems insignificant, but if you have one full rig with six RTX 2060 graphics cards, it will mean 9 EUR differences at the end of the month.