AMD

Advance micro device AMD Athlon X4 870K Black Edition with Thermal Solution 3.9 4 Socket FM2+ AD870KXBJCSBX

Name: Advance micro device AMD Athlon X4 870K Black Edition with Thermal Solution 3.9 4 Socket FM2+ AD870KXBJCSBX
Brand: AMD
SKU: B01BIWL1MY

Bottom line: The Advance micro device AMD Athlon X4 870K Black Edition: 3.9 GHz quad-core base clock, high for a budget FM2+ chip; main trade-off: socket FM2+ is end-of-life, no upgrade path beyond this era.

Live pricing on eBay

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

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

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-21

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 3.9 GHz quad-core base clock, high for a budget FM2+ chip
✓ Unlocked Black Edition multiplier, rated to 4.1 GHz overclock
✓ Ships with AMD thermal solution, no separate cooler purchase
✓ 4 MB cache and 64-bit processing across all four cores
✓ Drops into existing FM2+ boards for a cheap retro upgrade

Cons

✗ Socket FM2+ is end-of-life, no upgrade path beyond this era
✗ No integrated graphics, requires a discrete GPU to post
✗ 95 W TDP runs hot next to modern low-power chips
✗ 28 nm process lags far behind current CPU efficiency

Manufacturer description

Amd Athlon X4 870k Quad-core (4 Core) 3.90 Ghz Processor - Socket Fm2+retail Pack - 4 Mb - 64-bit Processing - 4.10 Ghz Overclocking Speed - 28 Nm - 95 W - 162.3°f (72.4°c)

SpecPicks Verdict

SpecPicks scored Advance micro device AMD Athlon X4 870K Black Edition using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpus category. AMD's retro cpus 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 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

Amd Athlon X4 870k Quad-core (4 Core) 3.90 Ghz Processor - Socket Fm2+retail Pack - 4 Mb - 64-bit Processing - 4.10 Ghz Overclocking Speed - 28 Nm - 95 W - 162.3°f (72.4°c)

Full Specifications

Brand	AMD
Model	AD870KXBJCSBX
UnitCount	1
Manufacturer	Advanced Micro Devices, Inc
IsAdultProduct	false
ItemPartNumber	B960956

Ready to buy?

Advance micro device AMD Athlon X4 870K Black Edition with Thermal Solution 3.9 4 Socket FM2+ AD870KXBJCSBX is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

See live eBay listings → Check Amazon listing →