AMD Zen 4 vs. Zen 4C Performance, Zen 4C Core Scaling With Ryzen 5 8500G
While code compilation workloads with one Zen 4 and one Zen 4C core were at around 85% the performance of having two Zen 4 cores, in the 7-Zip compression benchmark that dropped to about 77%.
Or for 7-Zip decompression, one Zen 4 and one Zen 4C core yielded 71% the performance of two Zen 4 cores.
In the case of 7-Zip, two Zen 4 cores yielded a better performance-per-Watt to one Zen 4 and one Zen 4C combination. But having the additional Zen 4C cores available did help further scale out the 7-Zip multi-threaded compression performance and was a win for the power efficiency with each additional Zen 4C core increasing the average CPU power consumption by about 3 Watts.
The OSPRay Studio 1.0 software saw nice scaling out of the Zen 4C cores and great power efficiency.