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AMD

Ryzen 9 7900 Spec and Price in the United Kingdom

AM512 cores / 24 threads

Released January 14, 2023 ·

A 65W alternative to the 170W Ryzen 9 7900X, cutting the TDP by more than half while keeping the same twelve cores, 24 threads and 64MB of L3 cache. Boost clock drops to 5.4GHz and base clock to 3.7GHz to fit the lower power envelope, a trade aimed at quiet or small-form-factor builds rather than peak throughput. Unlocked for overclocking on the same AM5, DDR5-5200 platform as its X-series counterpart.

Tied 23rd of 65 models in the CPU catalog on Boost clock — 8 models share this figure. Tied 17th of 65 models in the CPU catalog on L3 cache — 7 models share this figure.

Current best price
£279.99at Amazon.co.uk · captured 2026-09-15View at Amazon.co.uk

Captured periodically and may have changed.

Price history

30D90D180DAll
  • Ryzen 9 7900
March 28, 202658 capturestoday · £425.61

Each point is one capture, not a list price. How we track prices

Specifications

Cores
12
Threads
24
Socket
AM5
Boost clock
5.4 GHz
Base clock
3.7 GHz
L3 cache
64 MB
L2 cache
12 MB
TDP
65 W
Integrated graphics
Yes
Architecture
Zen 4
Process node
TSMC 5nm FinFET
Integrated GPU
AMD Radeon Graphics
Memory support
DDR5-5200
PCIe generation
5
PCIe lanes
24
Unlocked
Yes

Guides for this category

How to choose a desktop CPUA chip's socket decides what it can go into; cores, cache and TDP decide what you actually get once it's installed.How many CPU cores you actually needWhy more cores is not more speed, how gaming and productivity ask for cores differently, and why a core count alone never ranks two chips.When a CPU price is actually goodWhy a chip's list price and discount percentage tell you little, what a processor's price does over its life, and how to read its tracked history.Laptop CPU vs desktop CPUA mobile chip with the same core count is not the same processor — what the power envelope changes, and why these parts carry no price.

What owners and reviewers say

Summarised from 3 source(s), reviewed September 14, 2026. A source is counted only where it names this model exactly. How we track prices

Commonly praised

  • Reviewers highlighted its exceptional performance per watt, calling it among the most efficient desktop CPUs tested, helped by the bundled Wraith Prism cooler.
  • Testers found it could hit a peak boost near 5.45GHz and stayed easy to cool at its 65W TDP, making it suited to small-form-factor builds.
  • It offered strong multi-threaded capability and low power draw for its 12-core core count.
  • Owners value the 12 cores at a 65W envelope, reporting cool, quiet operation suited to air-cooled and small-form-factor builds.
  • Several owners say enabling PBO brings it close to the 7900X while keeping temperatures lower.
  • It is described as a good balance for both gaming and productivity workloads.

Commonly criticised

  • Its all-core boost of about 4.3GHz left out-of-the-box multi-threaded performance behind the higher-powered 7900X.
  • In games it trailed cheaper CPUs, with the Core i7-13700K ahead in the titles tested.
  • Its street price sat close to the higher-binned 7900X, so the savings were small.
  • The bundled cooler is often replaced or described as mediocre and noisy, and some owners question paying for it.
  • At times it has cost the same as or more than the 7900X.
  • Owners note it needs a current BIOS on some motherboards to run properly.

Sources behind this summary

Sources

Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.

The MSRP above came from this source instead, tracked separately from the specs.