Technology glossary

AMD Ryzen 9 9900X

AMD’s 12-core, 24-thread Zen 5 desktop processor for the AM5 platform.

AMD lists a launch date of 15 August 2024. It has a 4.4 GHz base and up to 5.6 GHz boost clock, 12 MB of L2 and 64 MB of L3 cache, and a 120 W default TDP. The cores are made on TSMC 4 nm and the I/O die on 6 nm.

It supports the AM5 socket, dual-channel DDR5 memory and PCIe 5.0, and it is unlocked for overclocking. A small integrated Radeon GPU (2 cores) is included; for gaming it is paired with a discrete graphics card. It differs from the Ryzen 9 9900X3D by lacking the extra 3D V-Cache.

Devices using this technology

Desktop computers · 2025

MSI Aegis ZS2 A9NVP-1407US

The Aegis ZS2 A9NVP-1407US is the Ryzen 9 9900X and desktop RTX 5070 version of MSI’s prebuilt gaming desktop. It comes with 32 GB of DDR5, a 2 TB Gen4 NVMe SSD, a 360 mm liquid cooler, a 750 W 80 Plus Gold power supply and Wi-Fi 6E; because the parts are standard, the graphics card, memory and storage can be upgraded. Best Buy owners praise quiet operation and gaming at high settings; a few say EXPO must be enabled in the BIOS for memory to reach its rated speed.

Desktop computers · 2025

MSI Aegis ZS2 C9NVV-1277US

The Aegis ZS2 C9NVV-1277US is MSI's prebuilt gaming desktop with a 12-core Ryzen 9 9900X, a desktop RTX 5080, 64 GB of DDR5, a 2 TB NVMe SSD, a 360 mm liquid cooler and an 850 W 80 Plus Gold power supply. It has Wi-Fi 6E and 1 Gbit Ethernet, but no Thunderbolt or USB4 port. Owners praise the cooling and cable routing and note that the motherboard is limited in expansion and layout.

Sources

  1. AMD: AMD Ryzen 9 9900X product page