Intel
8th Gen Core i5-8400 Processor
*Price sourced from Amazon.com. Last updated 2026-05-27. Price and availability subject to change.
Bottom line: The 8th Gen Core i5-8400 Processor is a category leader on buyer feedback in the retro cpus category, priced around $135.00, rated 4.7★ across 2,969 verified Amazon reviews. A confident buy for most shoppers in this category.
Prepare to be amazed with the 8th Generation Intel Core Desktop Processor family. The 8th Generation Intel Core i5-8400 comes with 6 processing Cores and 6 Threads. That's 2 additional Cores versus the previous generation for more processing power. This Intel Core processor redefines mainstream desktop PC performance with features such as 9MB Cache and up to 4.0 GHz max frequency. Immerse yourself in your favorite media content while the Intel UHD Graphics 630 provides you with a much richer visual experience. Be sure to pair your 8th Gen desktop processor with a motherboard based on the…
SpecPicks Verdict
SpecPicks classifies Intel 8th Gen Core i5-8400 Processor as a category leader on buyer feedback in the retro cpus category, based on 2,969 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Intel's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for retro cpus of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.7★ average across customer reviews
- ✓ Large, well-vetted feedback pool (2,969 reviews)
- ✓ Intel UHD Graphics 630
- ✓ Backed by Intel's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Intel UHD Graphics 630
- Compatible only with Motherboards based on Intel 300 Series Chipsets
- 6 Cores / 12 Threads
- 2.80 GHz up to 4.00 GHz Max Turbo Frequency / 9 MB Cache
- Intel Optane Memory Supported
Full Specifications
| Brand | Intel |
|---|---|
| Turbo | Yes |
| Wattage | 65 |
| Platform | Not Machine Specific |
| CPU Model | Core i5 |
| CPU Speed | 2.8 GHz |
| CPU Socket | LGA 1151 |
| Model Number | BX80684I58400 |
| Built-In Media | 1 processor |
| Item Type Name | 8th Gen Intel® Core™ i5-8400 Processor |
| Mfr Part Number | BX80684I58400 |
| Processor Brand | Intel |
| Processor Count | 6 |
| Processor Speed | 2.8 GHz |
Ready to buy?
Intel 8th Gen Core i5-8400 Processor is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-27. Price and availability subject to change.
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