AMD Ryzen 5 4500U Benchmarks - Previously Unimaginable Performance For Sub-$600 Laptops

Next up in this initial look at the Ryzen 5 4500U / Lenovo Flex 5 under Ubuntu Linux are various power and thermal metrics under the course of many different benchmarks.

Over the course of about two hours, the Flex 5 was hammered with a wide variety of benchmarks while running on battery and having the Phoronix Test Suite monitor the different vitals. When looking at the CPU peak frequency (the highest frequency found on any of the cores) on a one second interval during this testing, the average frequency came to about 3.0GHz but the CPU was successfully hitting its 3.99 (4.0) GHz boost frequency often.

Here is a look at the CPU package power consumption with the new "amd_energy" driver coming with Linux 5.8 for reporting the CPU package energy consumption. On average the CPU package according to the MSRs came out to about 10 Watts but there were spikes up to 30 Watts.

Here is a look at the battery power consumption during testing based on its sensors. Under load the Flex 5 average battery power consumption was 19.3 Watts but peaked at 45 Watts under extreme conditions.

The reported iGPU temperature came to a 51 degree average or 76 degrees under load.

The average system temperature under load was 62 degrees but did run into the 90s on a few occasions but overall not much in the way of thermal throttling to be found during this testing.

Those wanting to look at all of this sensor data on a per-benchmark basis can find all of the data via this OpenBenchmarking.org result file.