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.

EXAMPLE: EDC

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

During lightly threaded workloads, below 35A, the Level 1 EDC is set to a low value, in this case 60.

As more cores are needed, the EDC is set to 120, which was found by this user to be a sweet spot for performance.

Once the CPU passes 70A, it is in multi-threaded territory, where it was found that a high EDC of 250 gave optimal performance.

EXAMPLE: PPT

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°, it can run at full performance, so 350W is set to give plenty of overhead.

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

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