Intel
Pentium III 1 GHz 1000/256/133 SL4C8 socket 370 CPU Coppermine
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The Pentium III 1 GHz 1000/256/133 SL4C8 socket 370 CPU Coppermine is a niche pick — read recent reviews before buying in the retro cpus category. Read recent reviews carefully before committing.
The Intel Pentium III 1 GHz CPU, with 256 KB of L2 cache and a socket 370 interface, is a high-performance processor for desktop computers. This model, known as the Coppermine core, offers a clock speed of 1 GHz and a bus speed of 133 MHz. With a single core and no L3 cache, this CPU is designed for speed and efficiency. Produced by Intel in Costa Rica, the Pentium III 1 GHz is a reliable choice for those looking to upgrade their computer's processing power.
SpecPicks Verdict
SpecPicks classifies Intel Pentium III 1 GHz 1000/256/133 SL4C8 socket 370 CPU Coppermine as a niche pick — read recent reviews before buying in the retro cpus category, based on limited Amazon review volume so far and our ranking model that weights rating × review-volume × price-fit. Intel's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
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
| s_spec | SL4C8 |
|---|---|
| core_name | Coppermine |
| l2_cache_kb | 256 |
| bus_speed_mhz | 133 |
| core_clock_mhz | 1000 |
Ready to buy?
Intel Pentium III 1 GHz 1000/256/133 SL4C8 socket 370 CPU Coppermine is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
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