SiSoftware release early Ryzen 7 5800X and Ryzen 5 5600X ‘reviews’

Internal testing results of two Zen3 CPUs: Ryzen 7 5800X and Ryzen 5 5600X have been published by SiSoftware.

SiSoftware: 6-core “Zen3 is ~15-40% faster than Zen2”

The developer revealed benchmark results if its Ryzen 5000 series performance evaluations. Two processors based on Zen3 architecture have been tested: 6-core Ryzen 5 5600X and 8-core Ryzen 7 5800X.

According to the tests performed by SiSoftware, the 6-core Zen3 CPU is 15% to 40% faster than Zen2 CPU (Ryzen 5 3600X), while the 8-core 5800X is 25 to 40% faster than 3700X.

The developer claims that the Ryzen 5 5600X was even able to overtake 8-core Intel i9-9900K processors, which is described as a massive win. When it comes to Ryzen 7 5800X, SiSoftware puts its this way: the 8-core Zen3 CPU performs like a 12-core Zen2 CPU (such as Ryzen 9 3900X), leaving 10900K uncompetitive.

Please note that SiSoftware did not provide proof of being in possession of these CPUs (no photographs of the review units were shown). However, it was possible that the data was collected and aggregated from 3rd parties who used the developer’s software.

AMD Ryzen 5 5600X & Ryzen 7 5800X Aggregated CPU Scores, Source: SiSoftware

AMD Ryzen 5 5600X performance

SiSoftware conclusions on Ryzen 5 5600X:

Executive Summary: Zen3 (6-core) is ~15-40% faster than Zen2 across all kinds of algorithms. Thus we’ll give it 9/10.

Despite no major architectural changes (except larger 8-core CCX layout and thus unified L3 cache) over Zen2 – Zen3 manages to be quite a bit faster across legacy and heavily vectorised SIMD algorithms, though in the case of the 6-core (aka 5600X) due to its almost identical Turbo compared to old Zen2 (3600XT) it cannot beat it so soundly as the other siblings have as we’ve seen in the other reviews. The Zen2 XTs performance is just too good!

AMD Ryzen 7 5800X performance 

SiSoftware conclusions on Ryzen 7 5800X:

Executive Summary: Zen3 is ~25-40% faster than Zen2 across all kinds of algorithms. No choice but give it 10/10 overall!

Despite no major architectural changes (except larger 8-core CCX layout and thus unified L3 cache) over Zen2 – Zen3 manages to be quite a bit faster across legacy and heavily vectorised SIMD algorithms, naturally also soundly beating the competition even with AVX512 and more cores (e.g. 10-core SKL-X). Even streaming algorithms (memory-bound) improve over 20%. We certainly did not expect performance to be this good.

Source: Ryzen 7 5800X Review, Ryzen 5 5600X Review