Budget guide

Best Used CPUs Under $100

These picks rank currently tracked CPUs by recent used-market price and relative gaming performance, then adjust for platform age, thread count, efficiency, and sales confidence. The shortlist requires at least 4 cores, 8 threads, a 2018 or newer release, and 5 qualified sales.

Rankings prefer the used 25th percentile when it exists, because that is usually more stable than a single low outlier sale. If the 25th percentile is missing, the ranking falls back to the used minimum.

8 ranked picksprices last updated Jul 20, 2026Open live CPU chartBrowse CPU comparisons

Ranked Picks

Open each CPU page for the price history, percentile snapshot, and full spec sheet behind the ranking.

  1. #1

    Intel Core i3-10105F

    Recent used pricing around $44.99, and it still reaches a 54 relative gaming score while still fitting under the $100 ceiling. A 2021 release keeps it on a comparatively modern platform.

    used 25th percentile: $44.99gaming perf: 54cores: 4 / 8Treleased: 2021recommended value: 110.12raw value: 119.69recent sales: 17

    Lower core counts can start to limit newer games and background multitasking.

  2. #2

    AMD Ryzen 5 2600

    This processor pairs a 43 relative gaming score with recent used pricing around $38.49 while still fitting under the $100 ceiling, and a 65 W TDP keeps cooling and power requirements simple.

    used 25th percentile: $38.49gaming perf: 43cores: 6 / 12Tsocket: AM4released: 2018recommended value: 101.01raw value: 112.24recent sales: 5
  3. #3

    Intel Core i3-10100F

    Compared with most chips nearby, it gets to a 48 relative gaming score on recent used pricing around $47.41 while still fitting under the $100 ceiling; 16 recent qualified sales give the current price a better sample.

    used 25th percentile: $47.41gaming perf: 48cores: 4 / 8Treleased: 2020recommended value: 92.21raw value: 100.23recent sales: 16

    Lower core counts can start to limit newer games and background multitasking.

  4. #4

    AMD Ryzen 7 PRO 4750G

    Recent used pricing around $59.5, and it still reaches a 53 relative gaming score while still fitting under the $100 ceiling. 8 cores give it more multi-threaded headroom than most chips near this price.

    used 25th percentile: $59.5gaming perf: 53cores: 8 / 16Tsocket: AM4released: 2020recommended value: 89.18raw value: 89.18recent sales: 5
  5. #5

    AMD Ryzen 5 PRO 4650G

    This processor pairs a 53 relative gaming score with recent used pricing around $62 while still fitting under the $100 ceiling, and a 65 W TDP keeps cooling and power requirements simple.

    used 25th percentile: $62gaming perf: 53cores: 6 / 12Tsocket: AM4released: 2020recommended value: 86.00raw value: 86.00recent sales: 9
  6. #6

    Intel Core i3-10320

    Compared with most chips nearby, it gets to a 48 relative gaming score on recent used pricing around $54.99 while still fitting under the $100 ceiling; A 65 W TDP keeps cooling and power requirements simple.

    used 25th percentile: $54.99gaming perf: 48cores: 4 / 8Treleased: 2020recommended value: 80.85raw value: 87.88recent sales: 6

    Lower core counts can start to limit newer games and background multitasking.

  7. #7

    AMD Ryzen 5 3600

    Recent used pricing around $63.97, and it still reaches a 53 relative gaming score while still fitting under the $100 ceiling. 18 recent qualified sales give the current price a better sample.

    used 25th percentile: $63.97gaming perf: 53cores: 6 / 12Tsocket: AM4released: 2019recommended value: 74.16raw value: 82.40recent sales: 18
  8. #8

    Intel Core i5-10400F

    This processor pairs a 54 relative gaming score with recent used pricing around $75 while still fitting under the $100 ceiling, and 13 recent qualified sales give the current price a better sample.

    used 25th percentile: $75gaming perf: 54cores: 6 / 12Treleased: 2020recommended value: 72.58raw value: 72.58recent sales: 13

How To Use This Guide

These rankings are strongest when you treat them like a shortlist, not a verdict.

Check Platform Cost Too

A cheap CPU on a dead-end socket can cost more overall once you price the motherboard and RAM. Older platforms are often the best used deals, but only if you already own compatible parts or can get them cheaply.

Use The Price Baseline Correctly

The page uses sold-listing data, not asking prices. Even then, a single unusually low sale can exist, which is why the guide prefers the 25th percentile when the site has enough volume.

Match Cores To Your Workload

Gaming-first builds can favor fewer, faster cores; production or streaming builds usually want more. The value score here leans on gaming performance, so click through for Cinebench multi-core numbers before you buy for productivity.

Click Through Before You Buy

Open the dedicated CPU page to check current percentile pricing, release year, and the used-price history. That is usually where a borderline pick proves itself or drops off the list.

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Live tool

Used CPU comparison chart

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