We’re overclocking the AMD Radeon 780M integrated in the Ryzen 7 8700G APU up to 3150 MHz in 5 minutes or less using the ASUS ROG Strix X670E-I Gaming motherboard and EK 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 article.

All right, let’s do this.

5 Minute Speedrun

Switch to the Advanced Mode view and stay in the AI Tweaker menu.

Set Ai Overclock Tuner to EXPO Tweaked. This will not only load our memory kit’s EXPO frequency, timings, and voltage, but also apply some additional ASUS ROG memory timing tuning rules. Memory performance is critical for APU graphics performance.

Set Memory Frequency to DDR5-6800MHz. This is slightly higher than the EXPO rating of DDR5-6400. By first loading the EXPO profile, we ensure the EXPO memory timings and voltages are still applied.

Go to the Advanced Menu.

Enter the AMD Overclocking submenu. This BIOS menu provides us with all the AMD overclocking tools and knobs required to finetune the APU CPU core, graphics, infinity fabric, and memory performance.

Click Accept.

Enter the Manual iGPU Overclocking submenu. Now we can set our manual target clock frequency for the integrated graphics. We must also specify a target voltage for this frequency. We can set the frequency 250 MHz higher than the default 2.9 GHz. Note that the maximum graphics voltage is restricted to 1.25V in ambient conditions.

• Set GFX Clock Frequency to 3150
• Set GFX Voltage to 1200

Leave the Manual iGPU Overclocking submenu

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 Infinity Fabric Frequency and Dividers to 2500 MHz. This is up 500 MHz from the default 2 GHz.

Set UCLK DIV1 MODE to UCLK=MEMCLK/2. This forces the memory controller to run at half the frequency of the system memory. Our memory frequency will be DDR5-6800 which is 3400 MHz. So, the memory controller will run at 1.7 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:

Then save and exit the BIOS.

Radeon 780M 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. We see a maximum performance increase of +39.09% in AI Benchmark.

When running the 3DMark Speedway Stability Test, the average GPU effective clock is 3141 MHz with 1.200 volts. The GPU memory clock is 3400 MHz. The average GPU ASIC Power is 84 watts.

And that’s it, thanks for watching and see you next time!