How much does the Intel 8th Gen Core i5-8400 Processor cost on Amazon?

Intel 8th Gen Core i5-8400 Processor is listed on Amazon at $150.00 as of 2026-09-06. Prices change frequently — check the Amazon listing linked from this page for the current price and any active promotions.

What are the alternatives to the Intel 8th Gen Core i5-8400 Processor?

Intel 8th Gen Core i5-8400 Processor competes with other Retro CPUs products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Retro CPUs category for alternatives.

Who makes the Intel 8th Gen Core i5-8400 Processor?

Manufacturer information for Intel 8th Gen Core i5-8400 Processor is available on the Amazon listing.

How is the Intel 8th Gen Core i5-8400 Processor shipped and returned?

Intel 8th Gen Core i5-8400 Processor is sold through Amazon. Amazon Prime members generally receive free 1-2 day shipping; non-Prime orders are subject to Amazon's standard shipping rates. Full returns policy applies per Amazon Associate terms.

Intel 8th Gen Core i5-8400 Processor

Name: Intel 8th Gen Core i5-8400 Processor
Brand: Unbranded
SKU: B0759FGJ3Q
Price: 150.00 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$150.00

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🛒 See live eBay price Also on Amazon → Compare to similar retro cpus

*Price sourced from Amazon.com. Last updated 2026-08-20. Price and availability subject to change.

Bottom line: The Intel 8th Gen Core i5-8400 Processor is a niche pick — read recent reviews before buying in the retro cpus category, priced around $150.00. Compare close alternatives before committing.

The Intel Core i5-8400 is the six-core Coffee Lake chip that redefined mainstream desktop performance, adding two cores over the previous generation without asking you to move to an enthusiast platform. It runs a 2.80 GHz base clock and climbs to a 4.00 GHz max turbo frequency, backed by 9 MB of cache, so single-threaded work stays quick while six physical cores handle streaming, light editing, and multi-app workloads that used to choke quad-core builds. Integrated Intel UHD Graphics 630 drives displays and media playback without a discrete card, which makes this Core i5 a practical base for…

SpecPicks Verdict

SpecPicks scored Intel 8th Gen Core i5-8400 Processor using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the retro cpus category. Compare with similarly-priced alternatives in the retro cpus category before committing. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

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

✓ Intel UHD Graphics 630
✓ 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	Windows
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
Number of Items	1
Processor Brand	Intel
Processor Count	6
Processor Speed	2.8 GHz
Secondary Cache	9 MB
CPU Manufacturer	Intel
Processor Series	Core i5
Processor Socket	LGA 1151
Processor Core Count	1

Ready to buy?

Intel 8th Gen Core i5-8400 Processor is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-08-20. Price and availability subject to change.