Intel

Intel RB80526PZ001256 Pentium III 1GHz 133FSB 256KB Cache Processor

Name: Intel RB80526PZ001256 Pentium III 1GHz 133FSB 256KB Cache Processor
Brand: Intel
SKU: B00006LHPH
Price: 99.95 USD
Availability: InStock

Bottom line: The Intel RB80526PZ001256 Pentium III 1GHz 133FSB 256KB Cache Processor is a specs-and-price decision rather than a crowd-consensus one in the retro cpus category, priced around $99.95 on Amazon as of 2026-10-30 22:16 UTC. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$99.95 on Amazon, checked 2026-10-30 22:16 UTC (price may vary)

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🛒 See live eBay price Also on Amazon — $99.95 Compare to similar retro cpus

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-30

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 →

*Price sourced from Amazon.com. Last updated 2026-10-30. Price and availability subject to change.

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 III 1GHz Processor - 1GHz

SpecPicks Verdict

SpecPicks scored Intel RB80526PZ001256 Pentium III 1GHz 133FSB 256KB Cache Processor 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
Model	RB80526PZ001256
Manufacturer	Intel
ItemPartNumber	RB80526PZ001256

Benchmark data for other processors

Ready to buy?

Intel RB80526PZ001256 Pentium III 1GHz 133FSB 256KB Cache Processor 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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*Price sourced from Amazon.com. Last updated 2026-10-30. Price and availability subject to change.