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Threadripper 3990X prices

Every Threadripper 3990X listing we found on eBay, ranked by price per core including shipping. Updated Oct 11, 2026 14:38 UTC.

Cheapest used, per core$18.73

Cheapest new, per core$34.38

Cheapest single CPU$1,199.00

Condition New Open box Refurbished Used

$/core	Price	Shipping	Cores	Model	Platform	Condition	Listing
$18.73	$1,199.00	free	64	Threadripper 3990X	sTRX4 · DDR4	Used	AMD Ryzen Threadripper 3990X 64-Core 128-Thread sTRX4 CPU 100-000000163 Tested
$21.86	$1,399.00	free	64	Threadripper 3990X	sTRX4 · DDR4	Used	AMD Ryzen Threadripper 3990X 2.90GHz Processor 64-Core,128-Threads, Socket sTRX4
$34.38	$2,200.00	free	64	Threadripper 3990X	sTRX4 · DDR4	New	AMD Ryzen Threadripper 3990x CPU processor 64 cores 128 threads 2.9ghz strx4
$70.30	$4,499.00	free	64	Threadripper 3990X	sTRX4 · DDR4	Used	AMD Ryzen Threadripper 3990X Processor (4.3 GHz, 64 Core, Socket sTRX4) Tested
$103.12	$6,600.00	$100.00	64	Threadripper 3990X	sTRX4 · DDR4	Used	AMD Ryzen Threadripper 3990X

Showing 5 of 5 listings

Buying tips

Threadripper 3990X: 64 cores, Zen 2, socket sTRX4, DDR4 memory. sTRX4 takes Threadripper 3000 (TRX40 boards); it is not compatible with TR4 or sWRX8. Vendor lock: many used EPYC and Threadripper PRO chips were fused to Dell, HPE or Lenovo boards (AMD Platform Secure Boot) and will not boot anywhere else. Listings that say "locked" are hidden by default; listings that say nothing may still be locked — ask the seller. Engineering samples (ES) can have lower clocks, bugs or need special BIOS; they are hidden by default. Qualification samples (QS) are usually identical to retail chips.

How this table works

We collect Buy It Now listings from eBay US several times a day and divide the total price, including shipping, by the number of cores. Only processors we can identify by model are listed, and the core count comes from the model, not from the listing title (titles are often wrong). Lots are counted by their total cores; pairs are shown by default, bulk lots of three or more only when you tick the box. We remove coolers, brackets and tools, CPU and motherboard bundles, damaged chips and offers far below every other listing for the same model.