Hi volko

What you can do is make an overclock profile by selecting User Mode 1 under profiles in GPU Tweal II

Select User Mode 1 and increase the voltage and the power target to the max, don't worry it's perfectly safe Nvidia has the voltage capped so it will only go so far, then click apply.

Start up the most demanding game you have, when in game ALT+TAB out of the game and slide the Boost Clock to +100MHz and click apply, we'll use this as a starting point.

ALT+Enter to return to the game and see if all is still good. If all is still good ALT+TAB out of the game and slide the Boost Clock +10MHz, ALT + Enter to return to the game and see if all is good. Keep doing this until the driver crashes or you get artifacting then back off the Boost Clock 10-20MHz.

Now you have the maximum core clock.

Do the same with the memory keep alt+tabbing out of the game and raising the memory clock until the driver crashes or you get artifacting then back off the memory clock 10-20 MHz,

You can crank the fan to 100% or set a fan curve to keep your gpu cooler.

Let us know if yours overclocks further than Blunty's 🙂