Ryzen 9 9900X
12 cores / 24 threads, AM5, 120W, Zen 5
Used listings on eBay UK
New: £349.99 listed at Scan, checked 28 Oct (used is 31% less)
3-month move: +11.4% (£220.65 to £245.85)
Price history
Week of 12 Oct£245.10median of 4 salesSold £229 to £247
- Target Price £243
- Week with 3+ sales
- Fewer sales
- Single sale
Show as a table
| Week of | Median | Sales |
|---|---|---|
| 6 Jul 2026 | £208.54 | 3 |
| 13 Jul 2026 | £264.12 | 2 |
| 20 Jul 2026 | £309.00 | 1 |
| 27 Jul 2026 | £202.08 | 4 |
| 3 Aug 2026 | £223.87 | 2 |
| 10 Aug 2026 | £238.24 | 3 |
| 17 Aug 2026 | £213.25 | 2 |
| 31 Aug 2026 | £218.23 | 4 |
| 7 Sept 2026 | £218.47 | 1 |
| 14 Sept 2026 | £284.75 | 1 |
| 21 Sept 2026 | £275.00 | 4 |
| 28 Sept 2026 | £287.30 | 3 |
| 5 Oct 2026 | £246.60 | 3 |
| 12 Oct 2026 | £245.10 | 4 |
What the sales show
About 4 sales a week in the four weeks to 15 Oct.
Before you buy or sell a used Ryzen 9 9900X
Twelve Zen 5 cores and 24 threads are split across two six-core chiplets here, running at a 120W TDP and a 5.6GHz boost. That 120W rating distinguishes it from the 170W Zen 4 7900X, while the 3D V-Cache 9900X3D is a separate part.
Retail boxes omit a cooler, so factor in an AM5 heatsink alongside DDR5 memory. The chip includes basic Radeon graphics, and any 600-series AM5 board will require a Zen 5 BIOS update.
Recent UK sales
- 15 OctAMD Ryzen 9 9900X 12-Core 5.6GHz AM5 Desktop CPU 12MB L2 64MB L315 Oct£245.10
- 15 OctAMD Ryzen 9 9900X15 Oct£246.80
- 14 OctAMD Ryzen 9 9900X 12-Core 5.6GHz AM5 Desktop CPU 12MB L2 64MB L3 - Working14 Oct£229.00
- 12 OctAMD Ryzen 9 9900X 12-Core 5.6GHz AM5 Desktop CPU 12MB L2 64MB L312 Oct£245.10
- 10 OctAMD Ryzen 9 9000 Series - 9900X With Radeon Graphics10 Oct£239.90
- 9 OctAMD Ryzen 9 9900X – 12 Core / 24 Thread Processor – No 1 HWBOT / Cinebench 269 Oct£246.60
- 8 OctAMD Processor 9900X Ryzen 9 AM5 12C/24T 5.6GHz 76MB DDR5 Radeon 100-100000662WOF8 Oct£250.00
- 2 OctAMD Ryzen 9 9900X 12-Core Socket AM5 4.4GHz Desktop 9000series Processor2 Oct£300.22
- 30 SeptAMD Ryzen 9 9900X 12 Core 24 Thread 5.6GHz Turbo 64MB Cache CPU Radeon Graphics30 Sept£287.30
- 28 SeptAMD Ryzen 9 9900x28 Sept£222.75
- 26 SeptAMD Ryzen 9 9900X 12-Core 5.6GHz AM5 Desktop CPU 12MB L2 64MB L326 Sept£207.25
- 25 SeptAMD Ryzen 9 9900X - 12 Core - 24 Threads - With Warrenty25 Sept£275.00
- 25 SeptAMD Ryzen 9 9900x25 Sept£284.75
- 23 SeptAMD Ryzen 9 9900X - 12 Core - 24 Threads - With Warrenty23 Sept£270.54
- 19 SeptAMD Ryzen 9 9900x19 Sept£284.75
