AMD Ryzen 7 PRO 6850U: ACPI Platform Profile Low-Power vs. Balanced vs. Performance

Those wishing to see all of my benchmark results in full, including the individual CPU temperature, CPU peak frequency, and CPU SoC power consumption metrics, see this result page for all the individual data in full. There were more than 240 individual benchmarks carried out on each of the ACPI Platform Profile modes for seeing the impact to performance and power.

When taking the geometric mean of all 247 raw performance benchmarks used, the performance mode delivered just 3% higher performance over the default balanced mode. Meanwhile the low-power mode yielded just 84% of that out-of-the-box performance.

Here is the CPU power consumption during the entire span of benchmarks carried out. On average the Ryzen 7 PRO 6850U SoC had a 16.6 Watt power consumption rate and a peak of 27.9 Watts. With the Ryzen 7 PRO 6850U ThinkPad X13 Gen3 in the performance mode, the average jumped up to 19.3 Watts with a peak of 31.85 Watts. Or around a 16% increase in power consumption on average for just the 3% improvement to the geometric mean overall. Meanwhile in the ACPI Platform Profile low-power mode the 6850U had a 10.7 Watt average and a peak of 20.78 Watts. So on average the low-power mode was delivering 84% the performance of the out-of-the-box balanced mode but at just 64% the SoC power consumption, the big win in power efficiency as noted in many of the individual graphs with the performance-per-Watt.

Running in the low-power platform profile led to a CPU temperature average of 58 degrees compared to 69 degrees in the balanced more or 73 degrees in the performance mode. In the low-power mode, the CPU temperature never exceeded 70 degrees compared to 96~99 degrees in the higher performance modes.

When looking at the CPU peak frequency every second for the highest core frequency of any of the cures during the entire duration of the testing, this is how that comes out... On average the balanced mode had a peak core frequency of around 3.2GHz during benchmarking or 3.3GHz with the performance mode, but around 2.6GHz in the low-power mode.

Those wanting to dig through the plethora of benchmarks in full can find all of my Ryzen 7 PRO 6850U Lenovo ThinkPad X13 Gen3 Platform profile testing via this result page.