In this video, we’re overclocking the Core Ultra 7 270K Plus up to 5800 MHz in 5 minutes or less using 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 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, go to the Extreme Tweaker menu.

Set Performance Preferences to ASUS Advanced OC Profile. This sets up the BIOS to enable and assist with overclocking, including overriding some of Intel’s default parameters.

Set Ai Overclock Tuner to XMP Tweaked. This lets us rely on the Intel Extreme Memory Profile 3.0 technology and will make our memory run at its rated speed of DDR5-8000. Selecting “XMP Tweaked” means the motherboard will make some additional changes to the memory timings to improve performance.

Set ASUS MultiCore Enhancement to Enabled – Remove All Limits. This unleashes the Turbo Boost 2.0 power limits and lets the CPU run at unlimited power indefinitely.

Set Performance Core Ratio to By Core Usage. This enables us to configure a dynamic P-core overclock as we can define the maximum allowed P-core ratio for a specified number of active P-cores.

• Set 1-Core to 4-Core Ratio Limit to 58
• Set 5-Core to 8-Core Ratio Limit to 55

Set Efficient Core Ratio to By Core Usage. This enables us to configure a dynamic E-core overclock as we can define the maximum allowed E-core ratio for a specified number of active E-cores.

Enter the By E-Core Usage submenu.

• Set Efficient Turbo Ratio Limit 1 to 51
• Set Efficient Turbo Ratio Cores 1 to 8
• Set Efficient Turbo Ratio Limit 2 to 49
• Set Efficient Turbo Ratio Cores 2 to 16

Leave the By E-Core Usage submenu.

Enter the Thermal Velocity Boost submenu

Set TVB Voltage Optimizations to Enabled. This will make the CPU automatically reduce the operating voltage when it’s operating at lower temperatures.

Leave the Thermal Velocity Boost submenu

Enter the Performance Core V/F Point Offset submenu. Here we want to undervolt all P-cores at V/F Points 4, 5, 6 and 7 which are mapped to ratios 48X, 52X, 54X, and 55X respectively.

• Set V/F Point Present Mode to All Core Mode
• Set V/F Point Voltage Control Mode to Manual Mode
  • Set V/F Point 4 Offset to -60
  • Set V/F Point 5 Offset to -100
  • Set V/F Point 6 Offset to -100
  • Set V/F Point 7 Offset to -35

Leave the Performance Core V/F Point Offset submenu

Enter the Efficient Core V/F Point Offset submenu. Here we want to undervolt the E-cores at V/F Point 6 which maps to 47X.

• Set V/F Point Present Mode to All Core Mode
• Set V/F Point Voltage Control Mode to Manual Mode
  • Set V/F Point 6 Offset to -80

Leave the Efficient Core V/F Point Offset submenu

Enter the Tweaker’s Paradise submenu

• Set High d2d cold boot workaround to Enabled. This helps fix some booting issues when the CPU-D2D is overclocked.
• Set High D2D with High Memory workaround to Enabled. This helps fix some booting issues when the CPU-D2D is overclocked and we’re using high speed memory.

Leave the Tweaker’s Paradise submenu

Set Max. CPU Cache Ratio to 42. That increases the Ring frequency by 200 MHz from the default 4.0 GHz.

Set NGU Ratio to 34. That increases the NGU frequency by 800 MHz from the default 2.6 GHz.

Set CPU D2D Ratio to 38. That increases the CPU D2D frequency by 800 MHz from the default 3.0 GHz.

Set Performance Core DLVR Voltage to Adaptive Mode. That enables us to set an adaptive voltage mapped to each P-core’s “OC Ratio” which is defined by Per Core Ratio Limit (58X).

• Set Additional Turbo mode Voltage to 1.400.

Set Efficient Core DLVR Voltage to Adaptive Mode. That enables us to set an adaptive voltage mapped to each E-core cluster’s “OC Ratio” which is defined by Per Core Ratio Limit (51X).

• Set Additional Turbo mode Voltage to 1.250.

Set Ring DLVR Voltage to Manual Mode. That enables us to set an override voltage mapped to the Ring’s “OC Ratio” which is defined by the Ring ratio (42X).

• Set Additional Turbo mode Voltage to 1.200.

Set CPU System Agent Voltage to Manual Mode. This dynamic voltage rail powers several parts of the SOC dielet, including the NGU, IMC, and NPU. By setting it to manual mode, we can set a static output voltage from the voltage regulator.

Set CPU System Agent Voltage Override to 1.300.

Set VNNAON 0.77v Voltage to Manual Mode. This static voltage rail powers several internal voltages, including the D2D interfaces. The VnnAON voltage is pretty important for Arrow Lake CPUs as it is part of the voltage multiplexer for many IP blocks, including the cores and ring, typically serving as the floor voltage in power-saving scenarios.

Set VNNAON Voltage Override to 1.000.

Then save and exit the BIOS.

Core Ultra 7 270K Plus 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 highest Core Clock reported in the operating system is 5800 MHz.

When running the OCCT CPU SSE Stability Test, the average CPU P-core effective clock is  5490 MHz with 1.222 volts and the average CPU E-core effective clock is 4891 MHz with 1.148 volts. The average CPU temperature is 99 degrees Celsius. The average CPU package power is 299.7 watts.

And that’s it. Thank you for watching and the patrons for their support, and see you next time!