yes, 20-30% with gpu oc
for me there was huge improvment when I oc my ram. (6-8 FPS more in VR) I have ddr4 3200 CL16 and I was able to oc them to 3600MHz CL14 using dram calculator.
Also for cpu you can use cinabench r15 and do single and multi core test. You can squeeze a lot from this 2600x. Even if you set clock too high, your PC will auto shutdown or freeze. It’s almost impossible to damage cpu or gpu in current generation. Just remember to keep an eye on temperature in stress.
For ryzen when you will do cinabench test, try to keep max temp ~85C
In VR you will never reach this temp, so you will be very safe.
When you find stable clock then try to lower voltage step by step by 0.025v until windows won’t boot or freeze. After that just add 0.025 and be happy with optimal OC
For gpu in VR you should keep max temp ~75C. Just change your FAN behavior like mine.
In BIOS set SOC voltage to 1.2v. It’s safe but don’t go higher.
For DDR4 max voltage you can set is 1.45V. You have to increase it in order to OC your ram. Go slowly by 0.5V. Maybe you won’t need to go so high. Mine are set to 1.4V and SOC 1.15v
Now you can set your ram to the maximum.
Don’t be afraid to play with voltage and clocks. As long, as your temperatures ok you will be fine. Try to find your maximum and then lower tiny bit to be safe in long session. And always remember that you can reset bios by pressing for 5 sec small black button on a back of your motherboard.
***Everything in this post is very basic. It’s good to find on google what is recommended max voltage for your specific cpu/gpu/ram. The values I gave you should be very safe. I think you can squeeze even more, but double check.
One thing to let you know. When you set cpu voltage and clock then keep in mind that it’s voltage and clock for ALL CORES. You can find on google that people oc ryzen to 5GHz with 1.4v. But this is single core. When all cores are in use, your voltage must be lower and you can’t set it manually for every core. That’s why try to find lowest possible voltage for ALL CORE TEST.
Your 2600x got max boost clock 4.2GHz but it’s never 4.2 on all cores.
That’s why 4Ghz or 4.1Ghz all cores >>> 4.2Ghz default boost clock
If you have any question I will be happy to help you. Good luck.