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Intel Core i3-2100 Dual-Core Processor 3.1 GHz 3 MB Cache LGA 1155 - BX80623I32100

Intel Core i3-2100 Dual-Core Processor 3.1 GHz 3 MB Cache LGA 1155 - BX80623I32100

Bottom line: The Intel Core i3-2100 Dual-Core Processor 3.1 GHz 3 MB Cache LGA 1155: Steady 3.1 GHz clock on both cores for LGA 1155 desktop and retro-build duty; main trade-off: only 2 physical cores, so heavily multi-threaded workloads bottleneck quickly.

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By , Founder & Editor-in-Chief · Listing data updated

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.

Pros & Cons

Pros

  • ✓ Steady 3.1 GHz clock on both cores for LGA 1155 desktop and retro-build duty
  • ✓ Smart Multitasking runs two tasks per core, giving 4 threads from 2 physical cores
  • ✓ 3 MB last-level cache shared for fast access by both cores and the graphics engine
  • ✓ Graphics engine integrated on the same chip, so the board posts without a discrete GPU

Cons

  • ✗ Only 2 physical cores, so heavily multi-threaded workloads bottleneck quickly
  • ✗ LGA 1155 is a retired socket; you need a matching older motherboard to use it
  • ✗ 3 MB cache is small next to current-generation desktop CPUs
  • ✗ Listing states no TDP, stepping, or whether a cooler is included

Manufacturer description

Intel Core i3 Processor i3-2100 3.1GHz 3MB LGA1155 CPU

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SpecPicks Verdict

SpecPicks scored Intel Core i3-2100 Dual-Core Processor 3.1 GHz 3 MB Cache LGA 1155 using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpus category. Compare with similarly-priced alternatives in the retro cpus category before committing. 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

  • A much more powerful graphics engine than previous Intel micro architectures.
  • Fast access by cores and graphics to shared data in the last-level cache.
  • Manufactured entirely on Intel 32nm process technology, delivering yet another leap in performance.
  • Smart Multitasking allows each core of your processor to work on two tasks at the same time.
  • All cores plus graphics are integrated on a single chip.
  • Smart Multitasking allows each core of your processor to work on two tasks at the same time.

Full Specifications

BrandIntel
Wattage65 watts
PlatformWindows
CPU ModelCore i3
CPU Speed3.1 GHz
CPU SocketLGA 1155
Unit Count1 Count
Model NumberBX80623I32100
Mfr Part NumberBX80623I32100
Processor BrandIntel
Processor Count2
Processor Speed3.1 GHz
Secondary Cache3 MB
CPU ManufacturerIntel
Processor SeriesCore i3
Processor SocketLGA 1155
Processor Core Count2
Cache Memory Installed Size3
Global Trade Identification Number00735858217774
Processor Number of Concurrent Threads4

Benchmark data for other processors

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Intel Core i3-2100 Dual-Core Processor 3.1 GHz 3 MB Cache LGA 1155 - BX80623I32100
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