If you own a computer that is compatible with the AMD Ryzen 9 9900X CPU then you should get this one. My motherboard I am using for this CPU is the ASUS made PRIME B850-PLUS WIFI. The Ryzen 9 9900X is currently being sold for $389.99 on Newegg, and has really good reviews.
Reviews
Most of the reviews on Newegg consist of people saying that it was a good improvment to what they had before. There are some cons listed in many of the reviews too but, most of them are just explaining how it’s an improvement but not a major one or that it isn’t the most ideal for gaming. But considering the price it’s not too bad.
Pricing Vs Performance
The price of the CPU is floating around $400 depending on what site you buy it from it could be cheaper or more expensive. But, for the price it runs very well since it can run many higher-end games and applications at a time smoothly but, it’s not always able to run games at maximum graphics
- CPU Socket: AM5
- Number of CPU Cores: 12
- Multithreading: Yes
- Number of Threads: 24
- Maximum Boost Clock Up to 5.6 GHz
- Base Clock 4.4 GHz
- L1 Cache: 960 KB
- L2 Cache: 12 MB
- L3 Cache: 64 MB
Passmark rating
On Passmark, the AMD Ryzen 9 9900X is rated very high on both Multithread and Single Thread, as well as having a very low margin of error and 4817 Smaples. It is also 10th in terms of speed for all AM5 CPUs and is the cheapest CPU in the top 10.
Final Thoughts
If you have the right motherboard with the right CPU Socket, then you should definitely buy this CPU because it runs really well, especially for its price. There’s only one more CPU that is in the top 10 on passmark speedwise that is under $500. So if your budget is somewhere just under $400 dollars, this would be a great CPU to get, especially considering the high passmark ratings. So, for the price this CPU is a really good option to choose.
References
“AMD RyzenTM 9 9900X.” AMD, Nov. 2024, www.amd.com/en/products/processors/desktops/ryzen/9000-series/amd-ryzen-9-9900x.html.
“AMD Ryzen 9 9900X Benchmark.” Cpubenchmark.net, 2024, www.cpubenchmark.net/cpu.php?cpu=AMD+Ryzen+9+9900X&id=6171.
“PassMark Software – CPU Benchmarks – CPU Performance by Socket Type – Socket AM5.” Cpubenchmark.net, 2026, www.cpubenchmark.net/socket-type/am5. Accessed 4 Feb. 2026.
“AMD Ryzen 9 9900X – Ryzen 9 9000 Series Granite Ridge (Zen 5) 12-Core 4.4 GHz – Socket AM5 120W – Radeon Graphics Processor – 100-100000662WOF.” Newegg.com, 2021, www.newegg.com/amd-ryzen-9-9000-series-ryzen-9-9900x-granite-ridge-socket-am5-desktop-cpu-processor/p/N82E16819113842?item=N82E16819113842&utm_medium. Accessed 4 Feb. 2026.
“PRIME B850-plus WIFI.” ASUS Global, 2024, www.asus.com/motherboards-components/motherboards/prime/prime-b850-plus-wifi/. Accessed 4 Feb. 2026.
This review is part of a classroom project.