Question - ThrottleStop 9.6 Advice 14700k (2025)

When first testing, some users with similar 13th Gen CPUs leave the CPU E Cache voltage at +0.0000. They only undervolt the CPU Core and CPU P Cache. Of those two, the CPU P Cache is the important one for stability.

You might get better results running some software like Cinebench when the Core offset is set to a bigger number compared to the cache offset or it might not make any difference. I have not done any hands on testing of a 14700K. Just something to keep in mind. If the P Cache is more or less stable at -90 mV, backing this off a little to -80 mV might allow you to reliably increase the Core offset to say -120 mV. If you get better results, great. If it makes zero difference then leave these two offset voltages set equally.

When testing this, leave the E Cache at +0.0000 so it does not interfere with your results. Once you get the two important voltages dialed in, then you can go back and try adjusting the E Cache and see if it is worth adjusting this or not. Does it reduce the CPU temperature when testing? If it does not and if the CPU does not run any faster then there is no point undervolting the E Cache. Using a consistent test like Cinebench and watching the temperatures and ThrottleStop reported multipliers will give you feedback if you are accomplishing anything or not. I do not think the CPU P Cache and CPU E Cache offsets need to be set equally. Maybe you will get 100% stability and better overall results with the E Cache at an offset of -150 mV or -200 mV.

Question - ThrottleStop 9.6 Advice 14700k (1)

ThrottleStop is working great. The PL1 and PL2 turbo power limits are set to 253 W and ThrottleStop shows that your CPU is PL2 power limit throttling right at 253.0 W.

Some people see a multiplier of 52.16 and do not quite understand what this means. When an Intel CPU is thermal throttling or power limit throttling, internally the CPU will be rapidly adjusting the multiplier hundreds of times per second. This is what causes most popular monitoring software to choke.

The CPU's goal is to run as fast as possible without power consumption exceeding the requested power limit values. The CPU only has access to whole number multipliers. The CPU tries to use a higher multiplier, power consumption exceeds 253W so it reduces the multiplier. When power consumption drops under 253W, it tries to run faster. It is doing these adjustments so rapidly that the average multiplier is very consistent. A multiplier value of 52.16 basically means,

(52 X 84%) + (53 X 16%) = 52.16

If you would like the CPU to use the 53 multiplier for a higher percentage of time then you will need to increase the turbo power limits. You could try using 275W for PL1 and PL2. I like using ThrottleStop when testing because you can change the power limits while a stress test like Cinebench is in progress. No need to stop and restart Cinebench. This will give you instant feedback about how higher or lower power limits affect the CPU speed and temperatures.

These two power limits do not need to be set equal to each other. When Intel first started using power limits they used to recommend setting PL2 20% to 25% higher compared to PL1. They also used to recommend a turbo time limit of 28 seconds. You could try setting PL2 higher to say 275W or 300W. If running your CPU at 300W causes it to start thermal throttling after 8 seconds then that would suggest reducing the turbo time limit to 8 seconds. This can help you achieve maximum performance for short periods of time with less power limit throttling unless absolutely necessary.

Thanks for sharing your results. It is great to see how well a 14700K runs on a B660 board. I think the Mortar series boards had excellent cooling for the voltage regulators. Many B660 boards are low end boards with terrible VR cooling. If you try to run a 14700K at full power on a crap board you will see constant VR TEMP or VR CURRENT throttling lighting up red in Limit Reasons like a Christmas tree.

There is no multiplier overclocking on a B660 board. There is no real need to overclock a 14700K. Turning off Undervolt Protection, undervolting and adjusting the turbo power limits is how to tweak CPUs on one of these boards. The default voltage curve tends to be excessive so being able to drop the voltage can make a big difference. Less power consumption and heat equals more performance.

Question - ThrottleStop 9.6 Advice 14700k (2025)

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