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Intel Core i9-12900K — Price Guide & Live Deals

Live US Core i9-12900K deals on eBay across used, open box and new: what a fair asking price looks like and how to avoid 12900KF and engineering samples.

Right now: Used prices easing (-5.4% / 90d), 8 current qualifying listings.

Median ask
$270
Used · n=7
Listings now
8
qualifying right now
90-day Used median trend
-5.4%
vs 90 days ago

Current qualifying listings

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Intel Intel® Core™ i9-12900K 16 Core 3.2GHz CPU Processor (SRL4H) 12900K
Intel Intel® Core™ i9-12900K 16 Core 3.2GHz CPU Processor (SRL4H) 12900K
ebayUsed

$249.99 USD

Shipping calculated

★ 99.9% · 5,396 ratings

Listed today · checked 4h ago

Intel Core i9-12900K 3.20GHz 16 Core SRL4H 24 Thread LGA 1700
Intel Core i9-12900K 3.20GHz 16 Core SRL4H 24 Thread LGA 1700
ebayUsed

$269.00 USD

Free shipping

★ 99.8% · 10,811 ratings

Listed yesterday · checked 5h ago

Intel Core i9-12900K 3.20GHz 16 Core BX8071512900K 24 Thread LGA 1700
ebayUsed

$274.99 USD

Free shipping

★ 99.4% · 346 ratings

Listed 2 days ago · checked 5h ago

Intel Intel® Core™ i9-12900K 16-Core 3.2GHz Processor (SRL4H) Tested Working
Intel Intel® Core™ i9-12900K 16-Core 3.2GHz Processor (SRL4H) Tested Working
ebayUsed

$240.00 USD

Shipping calculated

★ 98.8% · 852 ratings

Listed 4 days ago · checked 4 days ago

Intel Core i9-12900K 3.20GHz 16 Core SRL4H 24 Thread LGA 1700
Intel Core i9-12900K 3.20GHz 16 Core SRL4H 24 Thread LGA 1700
ebayUsed

$259.00 USD

+$1.90 shipping

★ 99.7% · 1,607 ratings

Listed 4 days ago · checked 4 days ago

Intel Core i9-12900K Processor (5.2 GHz, 16 Cores, FCLGA1700) Box -...
Intel Core i9-12900K Processor (5.2 GHz, 16 Cores, FCLGA1700) Box -...
ebayOpen box

$245.55 USD

Free shipping

★ 99.5% · 589 ratings

Listed 5 days ago · checked 2 days ago

Intel Core i9-12900K 16-Core Up to 5.2GHz LGA1700 Unlocked Processor 30MB Cache
Intel Core i9-12900K 16-Core Up to 5.2GHz LGA1700 Unlocked Processor 30MB Cache
ebayUsed

$292.98 USD

Free shipping

★ 100% · 33 ratings

Listed 6 days ago · checked 5h ago

Intel Core i9-12900K 3.20GHz 16 Core SRL4H 24 Thread LGA 1700
Intel Core i9-12900K 3.20GHz 16 Core SRL4H 24 Thread LGA 1700
ebayUsed

$269.70 USD

Free shipping

★ 99.8% · 5,434 ratings

Listed 7 days ago · checked 5h ago

Roughly one qualifying listing every 1.8 days.

Asking-price ranges by condition

Condition Min 25% Median 75% Max N
Used $240.00 $259.00 $269.70 $274.99 $292.98 7
RefurbishedLow sample size $349.97 $349.97 $349.97 $349.97 $349.97 1
NewLow sample size $245.55 $245.55 $245.55 $245.55 $245.55 1

Asking prices of currently-active listings. Not sold-price data. Rows marked "low sample size" have fewer than 5 listings, so one outlier can move them a lot.

90-day Used median trend
-5.4%
vs 90 days ago

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How we filter

Every feed has its own filter, tuned by hand for this one part. Before any change goes live, those filters are tested against thousands of real eBay listing titles. Every night, each feed is checked against every other deal page in its category, so a listing for a different part that slips in gets flagged and fixed instead of quietly shown.

Of the 124 listings we observed for this game in the last 30 days, we filtered out 108 of 124 (~87%) for quality reasons. The remaining 16 are what we'd actually surface.

  • 84 matched a bootleg / out-of-scope keyword
  • 8 seller had too few feedback ratings
  • 5 priced above the curated ceiling
  • 4 caught by a junk-listing guard
  • 3 shipped from a region we exclude
  • 2 wrong condition (e.g. parts-only)
  • 1 seller positive-feedback percentage too low
  • 1 priced below our floor (too good to be true)

What the feed excludes

An eBay search for Intel Core i9-12900K returns far more than the part itself: laptop chips, mining rigs, coolers, empty boxes and whole PCs all mention it in their titles. These are the 63 terms we filter out to keep this feed to the real thing. A listing whose title contains any of them never reaches the feed, the price table or an alert. Many look unrelated to Intel Core i9-12900K because they are: that's the noise.

Other models & look-alikes 40
  • -riser
  • -extender
  • -water block
  • -thermal pad
  • -thermal paste
  • -repaste kit
  • -decal
  • -read description
  • -see description
  • -combo
  • -with ram
  • -motherboard
  • -delid
  • -delidded
  • -12900kf
  • -12900ks
  • -12900t
  • -12900f
  • -12900e
  • -wafer
  • -clam shell
  • -clamshell
  • -no cpu
  • -omnidesk
  • -thinkstation
  • -precision
  • -z690
  • -z790
  • -aorus
  • -stand
  • -mug
  • -es
  • -qs
  • -engineering
  • -sample
  • -tower
  • -2pcs
  • -3pcs
  • -4pcs
  • -5pcs
Broken, untested & empty listings 4
  • -as-is
  • -untested
  • -not tested
  • -dead
Laptops & other form factors 2
  • -workstation pc
  • -desktop pc
Lots & multi-item listings 1
  • -bundle
Accessories, merch & paper 16
  • -bracket
  • -cable
  • -adapter
  • -waterblock
  • -cooler only
  • -fan only
  • -heatsink only
  • -sticker
  • -poster
  • -keychain
  • -mousepad
  • -t-shirt
  • -bent pin
  • -case only
  • -presentation box
  • -empty

How often qualifying deals appear

  • 5 in the last 7 days (~0.71/day)
  • 17 in the last 30 days (~0.57/day)
  • 17 in the last 90 days (~0.19/day)

Core i9-12900K: buyer & reseller spec sheet

Exact SKU identity. The 12900K is a 16-core, 24-thread desktop processor for the LGA1700 socket, with integrated graphics. Its name nests inside the 12900KF (no integrated graphics) and the 12900KS (a higher-clocked special edition), which are different purchases. This feed excludes both by title, but confirm the exact model on the chip's heat spreader in the photos, not only in the title.

Variants & value impact. Retail boxed (BX-prefixed) and OEM tray (CM-prefixed) part numbers both show up. Tray chips usually ship without a cooler or retail packaging, and the original box is one source of the asking-price spread within Used. Open box listings are counted with New on this page, so read the description to see whether the chip was ever installed.

Listing traps. Engineering and qualification samples ("ES", "QS") are sold under the same name and are not retail chips; the feed drops them by title, and they typically carry odd clock speeds in the listing. Whole PCs, workstation towers and CPU-plus-motherboard bundles list under this CPU's name as the headline part, as do empty presentation boxes and collector clamshell cases. They are excluded by title wording and the price ceiling. Ask for sharp photos of the pins-side contacts and the top of the chip, and confirm your motherboard's BIOS supports it.

Buying a used processor: what to check

These checks apply to every processor on our CPU pages. The item notes above cover what is specific to this model.

Used

  • Ask for a clear, close photo of the pins or contact pads, wherever the socket keeps them. Bent pins are the most common failure.
  • Confirm the model printed on the heat spreader matches the listing, and ask for a screenshot of the chip identified in the OS or BIOS.
  • Ask whether it was overclocked or delidded. Neither is a dealbreaker, but both should be disclosed.

Refurbished

  • Find out who tested it and what the return window is.

New

  • Check whether it is a boxed retail chip or a tray chip. Tray chips usually ship without a cooler and with a different warranty.

FAQ

How much is Intel Core i9-12900K worth right now?
CresvaMent's daily eBay index puts the median asking price for Intel Core i9-12900K in Used condition at $270 across 7 active US listings (November 6, 2026 snapshot). Asking prices, not sold prices.
How do I get notified when a new Intel Core i9-12900K listing comes in under my price?
Live eBay listings for Intel Core i9-12900K are at cresvament.com/deals/processors/core-i9-12900k, and CresvaMent can alert you by Discord or email when a new one is listed under your max price (free for one tracker).
How often do qualifying deals appear?
In the trailing 30 days, 17 qualifying listings appeared — roughly 0.57 per day.
Is Intel Core i9-12900K reproduced or commonly faked?
In the last 30 days we excluded 84 listings for matching reproduction / out-of-scope keywords. The article above covers what to look for when verifying authenticity.

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Data freshness: last snapshot 2026-11-06 00:01 UTC . Atom feed

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