Intel RB80526PZ001256 Pentium III 1GHz 133FSB 256KB Cache Processor
As an Amazon Associate, SpecPicks earns from qualifying purchases.
*Price sourced from Amazon.com. Last updated 2026-09-14. Price and availability subject to change.
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. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.
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 our editorial and benchmark analysis 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Backed by Intel's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Full Specifications
| Brand | Intel |
|---|---|
| Model | RB80526PZ001256 |
| Manufacturer | Intel |
| ItemPartNumber | RB80526PZ001256 |
Ready to buy?
Intel RB80526PZ001256 Pentium III 1GHz 133FSB 256KB Cache Processor is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-09-14. Price and availability subject to change.
Related Retro CPUs
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- How to Build a Windows 98 Retro PC in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Best Retro Handhelds in 2026 — From $35 to $500
- Best 1440p Gaming GPUs in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
More reviews from the SpecPicks archive
Browse all reviews →- Best GPU for 1080p Esports in 2026: High-Refresh Without Overspending
- Does a Gaming Mouse Pad Actually Improve Your Aim? QcK vs Generic
- GeForce 4 Ti 4600 + Pentium 4 Northwood: Period-Correct 2002 Build Guide
- How LAN Parties Died: A 2002-2008 Cultural Retrospective
- DeepSeek on the US Entity List: Running V4 Locally in 2026
- Build a Raspberry Pi 4 AirPlay Receiver in 2026: Full Walkthrough
- Local LLM PC Build 2026: What 12GB of VRAM Really Runs
- Best Controller for PC AAA Gaming in 2026
- Watercooled Gaming/Networking Rack: 2025 Build Guide
- Intel Core Ultra X7 Panther Lake Performance on Linux 7.1
- Building a Budget Sim Racing Setup: Logitech G920 vs Thrustmaster TH8A Shifter
- Qwen 3.6 27B on 24GB VRAM: Backend, Quant + Settings Synthesis
- Hailo-10H AI Accelerator on Raspberry Pi 5: Real Tok/s for On-Device LLMs
- Best Gaming Mouse Pad for Esports & Office Use in 2026
- Local LLM as a Quake 3 / UT99 Demo Coach: Ollama on Ryzen 7 5800X + RTX 3060 (2026)
- GPU VRAM Guide: Running a 5GB TTS Model Locally
- Best Budget Gaming SSDs Under $100 in 2026
- Logitech G Pro X2 Superstrike: The $125.99 Deal Has Expired
- Best Cooler for a Ryzen 7 5800X: Noctua NH-U12S vs CoolerMaster ML240L
- ZOTAC RTX 3060 Twin Edge vs MSI Ventus 2X: Which 12GB Card for a Quiet Build?
- Can a Raspberry Pi 4 8GB Run a Local LLM? What Actually Works in 2026
- OpenAI Launches ChatGPT Work: An Agent for Whole Workflows
- 'Count Anything' AI Model Does Object Counting — Harder Than It Sounds
- Best GPU for Ryzen 7 9800X3D in 2026: Pairing Guide
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090