Intel

INTEL Pentium 4 Processor 531 3 GHz 800 MHz 1MB LGA775

Name: INTEL Pentium 4 Processor 531 3 GHz 800 MHz 1MB LGA775
Brand: Intel
SKU: B0069S9DCS

Bottom line: The INTEL Pentium 4 Processor 531 3 GHz 800 MHz 1MB LGA775 is a specs-and-price decision rather than a crowd-consensus one in the retro cpus category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-04

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 →

Before you buy

Confirm socket / form-factor / power-rating compatibility against your build before ordering
Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

Manufacturer description

Intel Pentium 531 3.0GHz 800MHz 1MB Socket LGA775 (SL9CB / SL8HZ / SL8PQ) HH80547PG0801MM / JM80547PG0801MM Desktop Processor

SpecPicks Verdict

SpecPicks scored INTEL Pentium 4 Processor 531 3 GHz 800 MHz 1MB LGA775 using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpus category. Intel'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.

Full Specifications

Brand	Intel
Wattage	2 watts
Platform	Windows
CPU Model	Pentium
CPU Speed	3 GHz
CPU Socket	LGA 775
Model Number	SL9CB
Mfr Part Number	SL9CB
Processor Brand	Intel
Processor Count	1
Processor Speed	3 GHz
Secondary Cache	1 MB
CPU Manufacturer	Intel
Processor Series	Pentium
Processor Socket	LGA 775
Cache Memory Installed Size	1 MB

Ready to buy?

INTEL Pentium 4 Processor 531 3 GHz 800 MHz 1MB LGA775 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.

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