AMD Ryzen 9 9900X CPU Review: 12-Core Zen 5 at $499

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Synthetic System Benchmarks

On this page, we will show synthetic benchmarks, some that test a variety of system use-case scenarios, and others that test specific multi-core and single-core/thread workloads to hone in on performance differences. Note that the graphs are arranged from fastest to slowest, and the AMD Ryzen 9 9900X CPU is highlighted. One of the primary goals while reading the performance is to see the difference between the Ryzen 9 9900X and Ryzen 9 7900X. Of course, the competition is included as well and we are showing both the Extreme Profile and Performance Profile BIOS settings. Take note that Core/Thread count differences will affect many results in multi-core/multi-thread testing.

PCMark 10 Express

PCMark 10 Express tests workloads as follows: PCMark 10 Express is a benchmark that focuses on basic work tasks. It is a good choice when tendering for PCs for general office use. The PCMark 10 Express benchmark focuses on the performance needs of a typical office worker. It tests Essentials and Productivity.

AMD Ryzen 9 9900X PCMark 10 Express Benchmark Performance Graph

This benchmark focuses mainly on workloads that are more lightly threaded in office applications. Right off the bat, the new 12-core AMD Ryzen 9 9900X is near the top of the graph, with the second-to-most performance at 7930. If we compare it to the previous generation Ryzen 9 7900X, then the AMD Ryzen 9 9900X is a small 3% faster, which is not a big performance difference in this lightly threaded workload. When we compare this to the Intel Core i9-14900K in the Performance Profile, it is at least 3% faster.

Geekbench 6

We are using Geekbench version 6.3.0 for our testing. We will show Multi-Core (nT) and Single-Core (1T) performance in separate graphs.

AMD Ryzen 9 9900X Geekbench 6 CPU Benchmark Multi Core Performance Graph

In Geekbench 6’s Multi-Core testing, the AMD Ryzen 9 9900X looks better with an 8% uplift compared to the previous generation Ryzen 9 7900X. In fact, the 12-core AMD Ryzen 9 9900X actually ends up having the same performance on Multi-Core as the 16-core Ryzen 9 7950X from the previous generation! That’s a pretty impressive positioning for the new AMD Ryzen 9 9900X to be in considering it is just 12-cores/24-threads. It is about 9% slower than the Intel Core i9-14900K in Performance Profile, however.

AMD Ryzen 9 9900X Geekbench 6 CPU Benchmark Single Core Performance Graph

The new AMD Ryzen 9 9900X has a more impressive 11% uplift in Single-Core performance compared to the Ryzen 9 7900X in the previous generation. At this single-core performance uplift, the new AMD Ryzen 9 9900X is actually also 11% faster than the Ryzen 9 7950X. It also outperforms the Intel Core i9-14900K by 4%.

3DMark CPU Profile

We are testing 3DMark’s CPU Profile which tests Max Thread performance and Single Thread performance, we are reporting both on separate graphs.

AMD Ryzen 9 9900X 3DMark CPU Profile Max Threads Performance Graph

The 3DMark Max Threads test shows that the AMD Ryzen 9 9900X provides a 7% performance uplift compared to the previous generation AMD Ryzen 9 7900X. This puts it under the other CPUs, however, due to the 12-core nature. It ends up being 12% slower than the Intel Core i9-14900K in the Performance Profile.

AMD Ryzen 9 9900X 3DMark CPU Profile 1-Thread Performance Graph

Once again, though, in the 1-thread performance, the new AMD Ryzen 9 9900X is doing very well at 14% better performance than the previous generation Ryzen 9 7900X. Therefore, at this performance level, it actually ends up also being faster than the Ryzen 9 7950X in 1-thread performance. It’s also 2% faster than the Intel Core i9-14900K.

PerformanceTest 11

AMD Ryzen 9 9900X PerformanceTest 11 PassMark CPU Mark Performance Graph

In PassMark PerformanceTest 11 CPU Mark result the AMD Ryzen 9 9900X ends up being just 5% faster than the AMD Ryzen 9 7900X from the previous generation. This puts it 12% behind the Intel Core i9-14900K and 13% behind the 7950X.

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REVIEW OVERVIEW

Performance
8
Efficiency (Perf per Watt)
10
Features
10
Value
7

SUMMARY

We reviewed the AMD Ryzen 9 9900X CPU Review, AMD's 12-core high-end desktop AM5 Zen 4 architecture based CPU at an MSRP of $499. It offers good performance, with an uplift mainly in single-thread performance and AVX workloads, but does not gain as much in multi-threading or lighter office type of workloads. It is a very efficient CPU, with a lower power draw, and runs cool loaded with features. It's value is hurt by the currently priced Ryzen 9 7900X, but over time, it should start to look more appealing.
Brent Justicehttps://www.thefpsreview.com
Former managing editor of GPUs at HardOCP for 18 years, Brent Justice has been reviewing computer components since the late 90s, educated in the art and method of the computer hardware review, he brings experience, knowledge, and hands-on testing with a gamer-oriented and hardware enthusiast perspective. You can follow him on Twitter - @Brent_Justice You can sub to his YouTube channel - Justice Gaming https://www.youtube.com/c/JusticeGamingChannel You can check out his computer builds on KIT - @BrentJustice https://kit.co/BrentJustice

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