We’re overclocking the Ryzen 5 8600G APU up to 5250 MHz in 5 minutes or less using the GIGABYTE B650E Aorus Elite AX Ice motherboard and custom loop water cooling.

I’ll speedrun you through the BIOS settings and provide some notes and tips along the way. Please note that this is for entertainment purposes only and not the whole picture. Please don’t outright copy these settings and apply them to your system. If you want to learn how to overclock this system, please check out the longer SkatterBencher guide.

All right, let’s do this.

5 Minute Speedrun

When you’ve entered the BIOS, stay in Easy Mode

Set XMP/EXPO Profile to EXPO 1. That makes the memory run at our EXPO-rated frequency of DDR5-6400 and associated memory timings.

Enable XMP/EXPO High Bandwidth Support. This GIGABYTE technology optimizes the memory timings to achieve better memory performance.

Switch to Advanced Mode and go to the Settings menu.

Enter the AMD Overclocking submenu. This will provide us with all the advanced AMD CPU overclocking tools.

Click Accept

Enter the DDR and Infinity Fabric Frequency/Timings submenu. Here we can adjust the system memory configuration as well as tune the infinity fabric and memory controller. Since we are using the EXPO settings for this guide, we’ll only finetune the infinity fabric and memory controller frequency.

Enter the Infinity Fabric Frequency and Dividers submenu

Set UCLK DIV1 MODE to UCLK=MEMCLK. This forces the memory controller to run at the same frequency as system memory. Our memory frequency will be DDR5-6400 which is 3200 MHz. So, the memory controller will run at 3.2 GHz.

Leave the Infinity Fabric Frequency and Dividers submenu

Leave the DDR and Infinity Fabric Frequency/Timings submenu

Enter the Precision Boost Overdrive submenu. Here, we can use the AMD Precision Boost Overdrive 2 toolkit to increase the power, current, and frequency headroom of the Precision Boost 2 boost algorithm.

Set Precision Boost Overdrive to Advanced

Set PBO Limits to Motherboard. This adjusts the PBO platform parameters PPT, TDC, and EDC according to the motherboard auto-rules. On this motherboard, we find that the following values have changed:

Set CPU Boost Clock Override to Enabled (Positive). That unlocks the ability to increase the CPU’s programmed Fmax, or maximum frequency, up to 200 MHz in steps of 25 MHz.

Set Max CPU Boost Clock Override(+) to 200. This increases the Fmax for each CPU core from 5050 MHz to 5250 MHz.

Enter the Curve Optimizer submenu. Here’s where the real magic happens as curve optimizer allows us to finetune the V/f curve for each core in a positive or negative direction. Each step represents around 5mV. On Ryzen 8000G processors we can set the Curve Optimizer for all cores or per core.

Set Curve Optimizer to Per Core

Set Core 0 to Core 5 Curve Optimizer Sign to Negative. Setting a negative offset means the CPU will use less voltage for a given frequency and boost to a higher frequency at a specific voltage. Setting a positive offset means the CPU will use more voltage for a given frequency and boost to a lower frequency at a particular voltage. It’s the former we need in our overclock. Note that the Curve Optimizer settings are highly CPU-specific, so you should find the best values for your CPU rather than copy mine.

I set the Curve Optimizer Magnitude for each core according to my test result.

• Set Core 0 and Core 4 Curve Optimizer Magnitude to 40
• Set Core 1, 3, and 5 Curve Optimizer Magnitude to 45
• Set Core 2 Curve Optimizer Magnitude to 35

Leave the Curve Optimizer submenu.

Leave the Precision Boost Overdrive submenu

Enter the SoC/Uncore OC Mode submenu. Here we can enable OC Mode for the SoC/Uncore IP blocks which forces the infinity fabric, unified memory controller, and system memory to always run at their highest frequency.

Set SoC/Uncore OC Mode to Enabled

Leave the SoC/Uncore OC Mode submenu

Enter the SoC Voltage submenu. Here we can increase the SoC Voltage to a maximum of 1.3V on ambient cooling. We need to increase the SoC voltage to have the memory controller frequency run in sync with the system memory frequency.

Set SoC Voltage to 1300.

Then save and exit the BIOS.

Ryzen 5 8600G Overclock Performance Improvement

We re-run some benchmarks to ensure everything works as intended and check the performance increase compared to the default settings. Higher is better, and all are higher. The Geomean performance improvement is +7.52%, and we get a maximum improvement of +16.07% in Geekbench 6 Multi.

The highest Core Clock reported in the operating system is 5250 MHz.

When running the OCCT CPU SSE Stability Test, the average CPU core effective clock is 5040 MHz with 1.322 volts. The average CPU temperature is 92.1 degrees Celsius. The average CPU package power is 108.7 watts.

And that’s it. I thank you for watching and the Patreons for the support. See you next time!