Core i5-8400
6 cores / 6 threads, LGA1151, 65W, Coffee Lake
Used listings on eBay UK
3-month move: −14.0% (£24.99 to £21.50)
Price history
Week of 26 Oct£23.89median of 1 sale
- Target Price £23
- Week with 3+ sales
- Fewer sales
- Single sale
Show as a table
| Week of | Median | Sales |
|---|---|---|
| 30 Mar 2026 | £32.99 | 1 |
| 20 Apr 2026 | £34.99 | 1 |
| 20 Jul 2026 | £24.99 | 1 |
| 17 Aug 2026 | £23.69 | 4 |
| 24 Aug 2026 | £28.95 | 3 |
| 31 Aug 2026 | £24.98 | 3 |
| 7 Sept 2026 | £24.15 | 6 |
| 14 Sept 2026 | £23.99 | 12 |
| 21 Sept 2026 | £24.49 | 11 |
| 28 Sept 2026 | £23.97 | 13 |
| 5 Oct 2026 | £21.85 | 11 |
| 12 Oct 2026 | £21.49 | 8 |
| 19 Oct 2026 | £21.49 | 12 |
| 26 Oct 2026 | £23.89 | 1 |
What the sales show
About 10 sales a week in the four weeks to 26 Oct.
Before you buy or sell a used i5-8400
Despite using the LGA1151 name, this Coffee Lake i5-8400 runs exclusively in 300-series motherboards such as H310, B360, Z370 and Z390, never older 100 or 200-series boards. It has six cores, six threads, a 4GHz boost, and onboard UHD 630 graphics.
Do not confuse it with the 95W unlocked i5-8600K or the later i5-9400F, which lacks video output. At 65W with DDR4 memory support, the retail box originally included a basic Intel fan cooler.
Recent UK sales
- 26 OctIntel Core i5-8400 CPU 6-Core 4.0GHz Socket 1151 Coffee Lake Processor SR3QT26 Oct£23.89
- 24 OctIntel Core i5-8400 6-Core 2.80GHz LGA1151 CPU Processor SR3QT24 Oct£21.22
- 24 OctIntel Core i5-8400 2.80GHz 6-Core LGA1151 CPU 9MB Cache 8GT/s SR3QT24 Oct£22.83
- 23 OctIntel Core i5-8400 2.80GHz 9MB Hexa Core CPU Processor LGA1151 SR3QT23 Oct£24.99
- 22 OctIntel Core i5-8400, SR3QT, 2.80GHz, CPU Processor, V742C21922 Oct£19.48
- 22 OctIntel Core i5-8400 CPU - Six Cores, 2.80GHz, 9MB Cache, Socket LGA 1151 (SR3QT)22 Oct£19.99
- 21 OctIntel Core i5-8400 2.80GHz 9MB Cache Socket LGA1151 Processor SR3QT21 Oct£19.36
- 21 OctIntel Core i5-8400 2.80GHz 9MB Cache Socket LGA1151 Processor SR3QT21 Oct£21.49
- 21 OctIntel Core i5-8400 CPU LGA1151 6 Core 2.8GHz up to 4.0GHz 8th Gen Processor21 Oct£23.99
- 20 OctIntel Core i5-8400 6-Core 2.80GHz LGA1151 CPU Processor SR3QT20 Oct£21.67
- 19 OctIntel Core i5-8400 CPU - Six Cores, 2.80GHz, 9MB Cache, Socket LGA 1151 (SR3QT)19 Oct£24.19
- 19 OctIntel Core i5-8400 2.80GHz (SR3QT) Socket LGA 1151 Processor CPU19 Oct£19.99
- 18 OctIntel Core i5-8400 CPU - Six Cores, 2.80GHz, 9MB Cache, Socket LGA 1151 (SR3QT)18 Oct£20.00
- 16 OctIntel Core i5-8400 2.8 Ghz 6-Core s.1151 SR3QT UNBOXED CPU ONLY16 Oct£26.99
- 16 OctIntel Core i5-8400 2.80GHz 9MB Cache Socket LGA1151 Processor SR3QT16 Oct£23.95
