AMD

Ryzen 9 9900X3D

The Ryzen 9 9900X3D is AMD’s 12-core, 24-thread processor for the AM5 platform, built on the Zen 5 architecture. Below you’ll find its full spec sheet and gaming and Cinebench 2024 productivity benchmarks, plus every retailer’s current price.

Prices update regularly and may differ at the retailer. This page contains affiliate links.

Ryzen 9 9900X3D processor

Gaming & productivity performance

Gaming score: CPU-bound 1080p rating, normalized to 100. Cinebench 2024: multi- and single-core points (Cinebench 2024 (nanoreview.net)).

Ryzen 9 9900X3DBest CPU
86.9
100.0

1080p Gaming

1,923
2,482

Cinebench Multi

136
145

Cinebench Single

The Ryzen 9 9900X3D scores 86.9 on our 0–100 CPU gaming scale. In Cinebench 2024 it renders 1,923 points multi-core and 136 single-core — versus 2,482 for the fastest CPU we list (Core Ultra 7 270K Plus).

Performance-per-dollar rank among all CPUs with live pricing

Gaming value

#83

of 134

Productivity value

#48

of 119

Benchmark scores

Cinebench 2024 results from the source cited below.

Cinebench 2024 Multi1,923 pointsCinebench 2024 (nanoreview.net)
Cinebench 2024 Single136 pointsCinebench 2024 (nanoreview.net)

Specifications

Cores & Clocks

Cores / Threads
12 / 24
Base clock
4.4 GHz
Boost clock
5.5 GHz
Architecture
Zen 5

Cache & Process

L3 cache
128 MB
L2 cache
12 MB
Process node
TSMC N4
Released
2025-03-12

Memory & Platform

Socket
AM5
Memory channels
2
Max memory
192 GB
Memory support
DDR5, 5600
PCIe
PCIe 5.0
ECC support
Yes

Power & Extras

TDP
120W
Max power
230W
Integrated graphics
Radeon Graphics
MSRP
$599.00

The Ryzen 9 9900X3D pairs 12 cores with 128 MB of L3 cache on the TSMC N4 process. Compare the Ryzen 9 9900X3D against the full CPU lineup on the CPU comparison table, or build a compatible system around it with the PC Builder.

Where to buy the Ryzen 9 9900X3D

Every in-stock retailer offer we track, cheapest first.

RetailerAvailabilityPriceBuy
AmazonSee on Amazon
Buy
B&HIn stock$599.00
Buy

The Ryzen 9 9900X3D starts from $499.99 across 2 retailers. Prices update daily from live stock.

Complete the build

The cheapest in-stock parts that actually fit the Ryzen 9 9900X3D — matched on socket and power delivery using the same rules as our PC Builder, priced live.

Cheapest compatible
Motherboard
B850M Pro RS
B850M Pro RS
ASRock · AM5 · 225W VRM

The most affordable AM5 board in stock whose power delivery can reliably run the Ryzen 9 9900X3D.

from
$129.99
at Newegg
Buy
Cheapest compatible
CPU Cooler
Assassin X 120 Refined SE RGB V2
Assassin X 120 Refined SE RGB V2
Thermalright · Air · 200W

The Ryzen 9 9900X3D doesn't include a cooler, so you'll need to add one. This is the cheapest air cooler in stock that fits AM5 and handles its heat.

price
See on Amazon
Buy

Contains affiliate links. Prices update regularly and may differ at the retailer.

How the Ryzen 9 9900X3D compares

Similar CPUs worth a look, based on live prices and 1080p gaming performance.

Affiliate disclosure: Some links on this page are affiliate links — MaxMyBuild may earn a commission at no extra cost to you if you buy through them. As an Amazon Associate, MaxMyBuild earns from qualifying purchases. For Amazon, current price and availability are shown on the Amazon product page; product prices and availability are accurate as of the date and time of purchase and are subject to change. Prices shown for other retailers are approximate and may differ at checkout. “Search” links are non-affiliate and provided for convenience only.