AMD Zen 4 vs. Zen 4C Performance, Zen 4C Core Scaling With Ryzen 5 8500G

Written by Michael Larabel in Processors on 28 February 2024 at 02:22 PM EST. Page 3 of 5. 21 Comments.

7-Zip Compression benchmark with settings of Test: Compression Rating. 2 x Zen 4, 4 x Zen 4C was the fastest.

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%.

7-Zip Compression benchmark with settings of Test: Decompression Rating. 2 x Zen 4, 4 x Zen 4C was the fastest.

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.

OSPRay Studio benchmark with settings of Camera: 1, Resolution: 1080p, Samples Per Pixel: 1, Renderer: Path Tracer, Acceleration: CPU. 2 x Zen 4, 4 x Zen 4C was the fastest.

OSPRay Studio benchmark with settings of Camera: 3, Resolution: 1080p, Samples Per Pixel: 1, Renderer: Path Tracer, Acceleration: CPU. 2 x Zen 4, 4 x Zen 4C was the fastest.

The OSPRay Studio 1.0 software saw nice scaling out of the Zen 4C cores and great power efficiency.

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