Sorry, does this work a little better?
Yep, much better
OK, I'm not sure exactly what RM's "Peak Cores Voltage" actually is: is it a setting for core voltage? I don't use RM and vastly prefer using BIOS settings. RM is actually not intended for 24/7 use, it's really a tool for OC competitions and demonstrations. The service itself is known to hurt system level performance.
The voltage to look at in HWInfo is CPU Core Voltage (SVI2 TFN). In that screen shot yours is currently at 1.362V with a PEAK voltage it's reported of 1.475V (perfectly normal). The AVERAGE voltage is 1.371. The average is important because that's what will degrade the processor if it's averaging really high.
For fixed overclocking what you're looking for is to keep the SVI2 voltage below 1.325V, preferebly below 1.3V, in very heavy, stressful, all-core processing (Cinebench) with around the 4.2Ghz. When the load lets up it may climb really high (no more Vdroop); that should be 1.4V or less. It may go as high as 1.5V which is not safe at all to leave that high constantly, even during light processing. Adjust LLC to help with that but too much LLC makes the processor unstable in and of itself.
If you leave it 'stock', or use PBO, in light processing it can boost to it's maximum clocks (maybe over 4.4Ghz for later 3600X's) but when it does it will demand up to 1.5V...and you'll see it in the maximum voltage reading. But when the load goes away the voltage will drop again to very low. That's why you have to pay a lot of attention to Average Voltage readings since that's the best indication of how much stress leading to degradation your CPU is seeing. Properly set up you'll see a lot of boosts to 1.5V (maybe even more) but the AVERAGE will probably be around 1.35V through a mixed work-load session (some heavy rendering, mostly just gaming and/or web browsing) or much, much less for JUST web browsing, email and word processing.
You can frequently improve boosting by slight undervolting using a negative offset. But don't overdue it, a phenomenon called clock compression can make you think it's running great but it's performing very poorly.
Gaming should present fairly light processing so you want to see it boosting to 4.4Ghz and hitting up to 1.5V as much as possible. That's where good cooling helps since it boosts much more eagerly when temperature can be held in the mid-70's.
I'm not familiar with OC'g Nvidia. AMD GPU's like to be undervolted first, then raise clock until it goes unstable (won't finish a 3DMark TimeSpy run). Undervolting alone usually nets a substantial performance improvement so raise voltage after overclocking as little as possible to keep it stable while watching temperature in TimeSpy. You have to decide how much temperature, and fan noise, you're willing to live with. Generally modern processes allow for 95C max temps but you need to check what's OK for your GPU.