Ryzen 7k HTFMax

[fightorflight]

This is a relatively obscure feature that appears to be present on some(?) Ryzen 7k chips but not all, and it seems that it could have a quite hefty impact on overclocking performance. According to this article, "High-temperature Fmax, or HTFMax, represents the maximum frequency allowed at high operating temperatures. This limiter is SKU-specific and may or may not be present. For example, on the 7600X, the HTFmax limiter starts at 5450 MHz at 70 degrees Celsius. The frequency reduces linearly until it reaches 5150 MHz at 95 degrees Celsius. However, on the 7900X, this limiter does not appear to be present". I can't seem to find any information about this from AMD resources, but that behavior does appear to be present on the 7800x3d.

Is this feature even present on the 7800x3d, or is it some other behavior in pb2 that is causing this? If it is HTFmax, is it possible to increase this limit slightly or to circumvent the heavy frequency drops above 70c?

Attachments:

[ShrimpBrime]

I haven't seen the white paper for this family of processors yet to give an accurate reply about Ryzen 7000 series processors.

But according to past generations, 70c is CPU high temp alert. This, during default operation is effective, when a default system hits 70c, the cpu cooling fan is commanded 100% duty cycle. From what I see here, this high temp alert temperature hasn't changed.