What's New?

As the first foray of AI Overclocking on an AMD architecture, the set of parameters has changed substantially, but voltage and clock speeds are still the primary targets for adjustment.

Predictive settings in the utility are designed to work in tandem with Precision Boost Overdrive (PBO), but they go one step further by enhancing the values for EDC, TDC, and PPT, as well as tuning the curve optimizer.

Finally, by enabling the Dynamic OC Switcher, AI Overclocking ensures that the CPU is using ideal settings whether in single- or multi-threaded workloads.

By managing the Electrical Design Current (EDC) in tandem with the total current, this feature can provide extra performance for short, demanding bursts.​

During lightly-threaded workloads below 35 amps, the Level 1 EDC in this scenario could be set to a low value. In this case, 60 amps.​

As more cores are needed, the EDC is set to 120 MHz, which is found here to be the sweet spot for performance.​

Once this CPU passed 70 amps, it was in multi-threaded territory, where it was found that a high EDC of 250 MHz gave optimal performance.​

In order to let the CPU cool off if its temperatures go too high, this user constrains the Package Power Target (PPT) when thermals increase. Specifically, the short-term value (“Fast”) is used.​

Until the CPU reaches 70° C , it can run at full performance, so 350 watts is set to give plenty of overhead.​

At that point, the power limit reduces to 220 watts, to let the CPU start reducing heat.​

If it is still under sustained load and keeps getting hotter, then a more stringent 165 watts PPT is set at 85° C.​