AMD Ryzen 5000 Series ZEN 3-Based CPUs Offer Double-Digit Performance Boost Over Previous Generation Indicates Early SiSoftware ‘Reviews’?

AMD’s new Ryzen 5000 Series of Desktop-grade CPUs, based on the new ZEN 3 Core Architecture, offers a significant boost in performance compared to the previous generation of Ryzen 3000 Series of processors. The new ZEN 3 Architecture has several new design elements that help boost core-to-core communication, lower latency, and offer a significant improvement in performance per core, indicate the first “reviews”.

SiSoftware posted the first alleged reviews for AMD’s ZEN 3-powered Ryzen 7 5800X and Ryzen 5 5600X CPUs. While the AMD Ryzen 5800X is an 8 Core 16 Thread CPU, the AMD Ryzen 5 5600X is a 6 Core 12 Thread CPU. Incidentally, AMD is expected to launch these new processors next week, but the reviews have arrived earlier, quite possibly, as a response to Intel officially offering information about the Intel Rocket Lake-S desktop-grade CPUs.

AMD ZEN 3 Architecture Is Min. 15 To Max. 40 Percent Better Than ZEN 2?

SiSoftware, a popular benchmarking website, has released some reviews of the new and as-yet-unreleased CPUs that belong to the latest AMD Ryzen 5000 Series of Desktop-grade family. According to the test results, the new ZEN 3-based processors measured up to 40 percent performance improvement for the AMD Ryzen 7 5800X over its immediate predecessor, ZEN 2-based the Ryzen 7 3800X. The benchmark gave it a perfect score of 10/10.

[Image Credit: SiSoftware via VideoCardz]
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 vectorized 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.

The AMD Ryzen 5 5600X, on the other hand, managed a 16 percent lead over its predecessor, the ZEN 2-based Ryzen 5 3600X. The Ryzen 5 5600X is still considerably faster and posts up to 40 percent improvement in a few benchmark tests but the difference isn’t that much when averaged across all benchmarks. The CPU still received a 9/10 score which is due to its impressive value and power efficiency.

[Image Credit: SiSoftware via VideoCardz]
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 vectorized 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 5000 Series Better Than Intel’s 9th, And 10th-Generation CPUs?

SiSoftware claims that the Ryzen 5 5600X was even able to overtake the 9th-Gen Intel Intel i9-9900K processor, an 8 Core 16 Thread SKU. For AMD Ryzen 7 5800X, SiSoftware claims the 8-core ZEN 3 CPU performs like a 12-core ZEN 2 CPU such as Ryzen 9 3900X, leaving even the 10th-Gen Intel Core i9 10900K uncompetitive in terms of price and performance.

It is important to note that SiSoftware has not offered any proof of being in possession of these new AMD ZEN 3 CPUs. There is no photographic evidence. Hence it is quite likely that the platform might have collated the data from 3rd parties who used the developer’s software. Reports, however, claim that both AMD Ryzen 5000 Desktop CPUs were tested on an X570 testbench with the latest BIOS installed from the specific manufacturer. The tests include arithmetic, SIMD, and also the cryptography performance, and the results are apparently aggregated.

Alap Naik Desai


A B.Tech Plastics (UDCT) and a Windows enthusiast. Optimizing the OS, exploring software, searching and deploying solutions to strange and weird issues is Alap's main interest.