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AMD Ryzen 7 9800X3D — Price Guide & Live Deals

Live US Ryzen 7 9800X3D deals on eBay across used, open box and new: fair asking prices, 7800X3D mix-ups, and what to check before you buy.

Right now: New prices roughly flat over 90 days, 38 current qualifying listings.

Median ask
$398
New · n=26
Listings now
38
qualifying right now
90-day New median trend
-2.9%
vs 90 days ago

Current qualifying listings

As an eBay Partner, CresvaMent may be compensated if you make a purchase through the eBay links on this page. CresvaMent is not affiliated with eBay.

AMD Ryzen 7 9800X3D 4.70GHz 8 Core 100-00000001084 16 Thread AM5
AMD Ryzen 7 9800X3D 4.70GHz 8 Core 100-00000001084 16 Thread AM5
ebayUsed

$379.99 USD

Free shipping

★ 99% · 1,070 ratings

Listed today · checked 5h ago

New AMD Ryzen 7 9800X3D 4.7GHz 8 Core 16 Thread 100-100001084WOF Socket AM5
New AMD Ryzen 7 9800X3D 4.7GHz 8 Core 16 Thread 100-100001084WOF Socket AM5
ebayNew

$425.00 USD

Shipping calculated

★ 100% · 117 ratings

Listed today · checked 5h ago

New AMD Ryzen 7 9800X3D 8-Core 4.7GHz CPU Processor Socket AM5 LGA1718
New AMD Ryzen 7 9800X3D 8-Core 4.7GHz CPU Processor Socket AM5 LGA1718
ebayNew

$385.00 USD

Free shipping

★ 100% · 218 ratings

Listed today · checked 5h ago

AMD RYZEN 7 9800X3D, 8-core, 16-thread desktop processor. (100 % NEW)
AMD RYZEN 7 9800X3D, 8-core, 16-thread desktop processor. (100 % NEW)
ebayOpen box

$340.00 USD

Shipping calculated

★ 99.4% · 236 ratings

Listed today · checked 12h ago

AMD Ryzen 7 9800X3D 8-Core 5.2GHz AM5 Zen 5 Desktop Gaming Processor CPU
AMD Ryzen 7 9800X3D 8-Core 5.2GHz AM5 Zen 5 Desktop Gaming Processor CPU
ebayNew

$549.99 USD

+$6.99 shipping

★ 100% · 90 ratings

Listed today · checked 5h ago

New AMD Ryzen 7 9800X3D 4.7GHz 8 Core 16 Thread 100-100001084WOF Socket AM5
New AMD Ryzen 7 9800X3D 4.7GHz 8 Core 16 Thread 100-100001084WOF Socket AM5
ebayNew

$395.00 USD

Free shipping

★ 100% · 806 ratings

Listed today · checked 22h ago

AMD RYZEN 7 9800X3D, 8-core, 16-thread desktop processor. (100 % NEW)
AMD RYZEN 7 9800X3D, 8-core, 16-thread desktop processor. (100 % NEW)
ebayOpen box

$340.00 USD

Shipping calculated

★ 99.4% · 236 ratings

Listed today · checked 23h ago

AMD Ryzen 7 9800X3D 8-Core Processor, Socket AM5 (100-100001084WOF)
AMD Ryzen 7 9800X3D 8-Core Processor, Socket AM5 (100-100001084WOF)
ebayNew

$360.00 USD

Shipping calculated

★ 100% · 29 ratings

Listed yesterday · checked yesterday

RYZEN 7 9800X3D 8-Core, 16-Thread Desktop Processor
RYZEN 7 9800X3D 8-Core, 16-Thread Desktop Processor
ebayNew

$612.91 USD

Free shipping

★ 98.1% · 3,821 ratings

Listed yesterday · checked yesterday

New AMD Ryzen 7 9800X3D 4.7GHz 8 Core 16 Thread Socket AM5 - New Sealed
New AMD Ryzen 7 9800X3D 4.7GHz 8 Core 16 Thread Socket AM5 - New Sealed
ebayNew

$394.99 USD

Free shipping

★ 99.7% · 3,286 ratings

Listed yesterday · checked yesterday

AMD Ryzen 7 9800X3D 8 Core 4.70GHz OC AM5 Boxed Processor 100100001084WOF
AMD Ryzen 7 9800X3D 8 Core 4.70GHz OC AM5 Boxed Processor 100100001084WOF
ebayNew

$530.75 USD

Free shipping

★ 99.5% · 136,247 ratings

Listed yesterday · checked 5h ago

AMD Ryzen 7 9800X3D 4.70GHz 8 Core 100-000001084 16 Thread AM5
AMD Ryzen 7 9800X3D 4.70GHz 8 Core 100-000001084 16 Thread AM5
ebayUsed

$375.00 USD

Free shipping

★ 100% · 24 ratings

Listed yesterday · checked yesterday

About 2.7 qualifying listings appear per day on average.

Asking-price ranges by condition

Condition Min 25% Median 75% Max N
Used $330.00 $350.00 $360.00 $379.99 $389.99 12
New $310.00 $365.00 $398.00 $429.99 $646.39 26

Asking prices of currently-active listings. Not sold-price data.

90-day New median trend
-2.9%
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 209 listings we observed for this game in the last 30 days, we filtered out 128 of 209 (~61%) for quality reasons. The remaining 81 are what we'd actually surface.

  • 98 matched a bootleg / out-of-scope keyword
  • 13 priced above the curated ceiling
  • 12 seller had too few feedback ratings
  • 3 caught by a junk-listing guard
  • 2 seller positive-feedback percentage too low

What the feed excludes

An eBay search for AMD Ryzen 7 9800X3D 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 50 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 AMD Ryzen 7 9800X3D because they are: that's the noise.

Other models & look-alikes 29
  • -riser
  • -extender
  • -water block
  • -thermal paste
  • -thermal pad
  • -decal
  • -read description
  • -see description
  • -combo
  • -with ram
  • -motherboard
  • -2pcs
  • -3pcs
  • -4pcs
  • -5pcs
  • -stand
  • -mug
  • -7800x3d
  • -5800x3d
  • -7950x3d
  • -7900x3d
  • -9950x3d
  • -9900x3d
  • -9700x
  • -7700x
  • -9600x
  • -ddr5
  • -gpu
  • -rtx
Broken, untested & empty listings 4
  • -as-is
  • -untested
  • -not tested
  • -dead
Laptops & other form factors 4
  • -workstation pc
  • -gaming pc
  • -desktop pc
  • -pc
Lots & multi-item listings 1
  • -bundle
Accessories, merch & paper 12
  • -bracket
  • -cable
  • -adapter
  • -waterblock
  • -cooler only
  • -fan only
  • -heatsink only
  • -sticker
  • -poster
  • -keychain
  • -mousepad
  • -t-shirt

How often qualifying deals appear

  • 49 in the last 7 days (~7/day)
  • 81 in the last 30 days (~2.7/day)
  • 81 in the last 90 days (~0.9/day)

Ryzen 9800X3D: buyer & reseller spec sheet

Identity. The Ryzen 7 9800X3D is an 8-core, 16-thread desktop processor with 3D V-Cache for the AM5 socket. Confirm it from the chip's printed model in the photos, not the title: the part numbers in this feed's listings contain 1084, for example 100-000001084 and 100-100001084WOF. Ask the seller if a listing quotes neither.

Siblings. The Ryzen 7 7800X3D is the previous-generation 8-core X3D chip on the same socket, and the 9950X3D and 9900X3D are higher-core-count chips. Search results mix them together, and some single listings name several chips at once. This feed excludes the others.

Title traps. Clock speeds quoted in titles disagree from listing to listing, and one listing calls the chip a "Ryzen 9". Trust the photos and the part number over the title text.

Whole PCs dominate. Most raw results for this search were prebuilt gaming PCs and CPU, board and RAM bundles listed under the processor's name. The feed drops them by title wording and a price ceiling.

Imports. A noticeable share of bare-chip listings came from sellers outside the US, so this feed shows US-located sellers only.

Open box. The page counts open box with New. Ask whether the chip was ever installed.

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 AMD Ryzen 7 9800X3D worth right now?
CresvaMent's daily eBay index puts the median asking price for AMD Ryzen 7 9800X3D in New condition at $398 across 26 active US listings (November 6, 2026 snapshot). Asking prices, not sold prices.
How do I get notified when a new AMD Ryzen 7 9800X3D listing comes in under my price?
Live eBay listings for AMD Ryzen 7 9800X3D are at cresvament.com/deals/processors/ryzen-7-9800x3d, 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, 81 qualifying listings appeared — roughly 2.7 per day.
Is AMD Ryzen 7 9800X3D reproduced or commonly faked?
In the last 30 days we excluded 98 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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