# Used Ryzen 9 3900X price UK — £100 (Oct 2026) | PathAu

> A used AMD Ryzen 9 3900X sells for about £100 in the UK: median of 43 eBay UK sales in the 60 days to 25 Oct 2026, half between £94 and £110. Recent sales.

Source: https://pathau.co.uk/prices/processors/ryzen-9-3900x/

# Used AMD Ryzen 9 3900X price in the UK

**£100**typical used price

Median of 43 used sales on eBay UK in the 60 days to 25 Oct 2026 · updated 25 Oct 2026

**£94–£110**half of them sold in this range

**~5**sold a week

## Deal or overpriced?

- **Under £94** — Great deal (bottom quarter of recent UK sales).
- **£94–£110** — Fair UK price (typical median is £100).
- **Over £110** — Priced high compared with recent eBay UK sold listings.

## Recent sales

| Sold | Price | Listing |
| --- | --- | --- |
| 24 Oct 2026 | £115 | AMD Ryzen 9 3900X 12-Core 24-Thread AM4 CPU - Used, Fully Working - CPU Only |
| 24 Oct 2026 | £111 | AMD Ryzen 9 3900X 12-Core 24-Thread AM4 3.8GHz CPU Processor + Box & Cooler |
| 22 Oct 2026 | £109 | AMD Ryzen 9 3900X 12-Core 3.8GHz CPU Processor Socket AM4 |
| 19 Oct 2026 | £89 | AMD Ryzen 9 3900X 12-Core 3.8GHz CPU Processor Socket AM4 |
| 18 Oct 2026 | £100 | AMD Ryzen 9 3900X Ryzen 9 Processor CPU |
| 18 Oct 2026 | £100 | AMD Ryzen 9 CPU Processor AMD Ryzen 9 3900X Desktop Processor |

## Used PCs with a Ryzen 9 3900X

In the last 30 days we saw **42** used PCs with a Ryzen 9 3900X listed on eBay UK, Gumtree, Vinted and Facebook Marketplace. Half were asking under **£688**. We price each one part by part, so you see which are worth more than they cost.

## Other processors

- [i7-10700F](https://pathau.co.uk/prices/processors/i7-10700f/)**£95**
- [i5-12500](https://pathau.co.uk/prices/processors/i5-12500/)**£97**
- [Ryzen 5 7600X](https://pathau.co.uk/prices/processors/ryzen-5-7600x/)**£100**
- [Ryzen 5 5600X](https://pathau.co.uk/prices/processors/ryzen-5-5600x/)**£101**
- [i7-10700K](https://pathau.co.uk/prices/processors/i7-10700k/)**£105**
- [i5-12600](https://pathau.co.uk/prices/processors/i5-12600/)**£110**

[All processors](https://pathau.co.uk/prices/processors/) · [How we price](https://pathau.co.uk/prices/how-we-price/)

## Questions

**How much is a used AMD Ryzen 9 3900X worth in the UK?**

Around £100. That is the median of 43 used AMD Ryzen 9 3900X sales on eBay UK in the 60 days to 25 Oct 2026; half sold between £94 and £110.

**Is £94 a good price for a used AMD Ryzen 9 3900X?**

It is cheaper than three in four recent sales. A price far below that is more often a fault, a missing part or a scam than a bargain, so check the photos and the seller, and see it working before you pay.

**How do I find a Ryzen 9 3900X below that price?**

Set a watchlist in PathAu. New listings on eBay UK, Gumtree, Vinted and Facebook Marketplace are checked about every minute and you hear about the ones under your price.