Intel

Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W

Name: Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W
Brand: Intel
SKU: B005404P9I
Price: 439.00 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-15

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 →

$439.00

As an Amazon Associate, SpecPicks earns from qualifying purchases.

Buy on Amazon — $439.00 Compare to similar processors

*Price sourced from Amazon.com. Last updated 2026-09-15. Price and availability subject to change.

Bottom line: The Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W is a specs-and-price decision rather than a crowd-consensus one in the processors category, priced around $439.00. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

8 Cores/ 16 Threads 3.60 GHz up to 5.00 GHz/ 16 MB Cache Compatible only with Motherboards based on Intel 300 Series Chipsets

SpecPicks Verdict

SpecPicks scored Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the processors category. Intel's processors lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for processors 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.

Frequently Asked Questions

What motherboard do I need for the i9-9900K?

It uses the LGA1151 socket and is compatible only with motherboards based on Intel 300 Series chipsets, such as Z390, Z370, B365, and H370. It will not work in 100 or 200 Series boards.

How fast does the i9-9900K actually run?

Base clock is 3.60 GHz with Turbo up to 5.00 GHz. Sustained boost behavior depends on your cooling solution and motherboard power limits.

Does the i9-9900K come with a cooler?

No stock cooler is listed in the product specs. Plan on a separate air or liquid cooler, and check the current listing to confirm exactly what is in the box.

Can I use this CPU without a graphics card?

Yes. It includes Intel UHD Graphics 630, so you can display video and troubleshoot without a discrete GPU, provided your motherboard has video outputs.

Is the i9-9900K unlocked for overclocking?

Yes, the K suffix means the multiplier is unlocked. You will need a Z-series 300 chipset motherboard and adequate cooling to push past the 5.00 GHz turbo ceiling.

Pros & Cons

Pros

✓ 8 Cores/ 16 Threads
✓ 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

8 Cores/ 16 Threads
3.60 GHz up to 5.00 GHz/ 16 MB Cache
Compatible only with Motherboards based on Intel 300 Series Chipsets
Intel Optane Memory supported
Intel UHD Graphics 630

Full Specifications

Size	I9-9900K
Brand	Intel
Model	BX80684I99900K
Warranty	Altering clock frequency or voltage may damage or reduce the useful life of the processor and other system components, and may reduce system stability and performance. Product warranties may not apply if the processor is operated beyond its specifications. Check with the manufacturers of system and components for additional details.
UnitCount	1
ReleaseDate	2018-10-19T00:00:01Z
Manufacturer	Intel
IsAdultProduct	false
ItemPartNumber	BX80684I99900K

Ready to buy?

Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W 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.

Buy on Amazon — $439.00

*Price sourced from Amazon.com. Last updated 2026-09-15. Price and availability subject to change.