The bios options and layouts can be a pain to find, usually the manual has some overview of what's where. The basics are fairly good for the Gigabyte board I'm using but the new options added later on were thrown into a number of submenus elsewhere so yeah there goes that layout. Recommended would be to find the latest stable bios and update to that too but since you're on a 5800X it'd have to be 126.96.36.199 or later which should be solid until the next version finalizes with 188.8.131.52 for I think AMD planned for February for that. (Some early beta bios already available for testing from some of their partners.) GPU otherwise works pretty similar where any activity causes a short burst of voltage and higher clock speeds until that's resolved and then for the Balanced profile (AMD Balanced for the 3000 series.) it'll go back to sleep again but any one task and the CPU wakes. Running background software like iCUE and other software can prevent the CPU from ever idling or sleeping but then you also only need to move the mouse cursor for it to wake so in general I see it hovering around 4.0 to 4.2 Ghz for my own 3900X CPU. (Single CCX and optimal core boosting high and finishing it's task and then again as needed which is usually always something.) Workload is pretty low so the temps aren't too bad it does push a bit more power though and the high burst voltage here. PBO2 with curve optimization could be one way to work with AMD's algorithm there's also Eco mode where you drop the CPU's clocks and overall total power draw to a lower level although with the better boost functionality and performance for the Zen3 CPU's you do lose a bit more compared to Zen2 since these can hit close to 5 Ghz during light core utilization and having the favored core and optimum CCX (Core complex) handle tasks.