Intel Celeron 2.8GHz 400MHz 128KB Socket 478 CPU

Name: Intel Celeron 2.8GHz 400MHz 128KB Socket 478 CPU
Brand: Unbranded
SKU: B000YAB6QS

Bottom line: The Intel Celeron 2.8GHz 400MHz 128KB Socket 478 CPU 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 2026-10-05

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 →

Pros & Cons

Pros

✓ 2.80 GHz Processor Speed 400 MHz Bus Speed 128 KB L2 Cache 0.13 micron process

Cons

✗ 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

From Internet use to applications, and educational programs, the Intel Celeron processor provides the capability and reliability to meet your everyday computing needs! This Intel 2.8 GHz Celeron processor runs at 400 MHz bus speeds and comes with 128 KB L2 Cache! Add it to your PC today!!

SpecPicks Verdict

SpecPicks scored Intel Celeron 2.8GHz 400MHz 128KB Socket 478 CPU 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

Intel Celeron 2.8 GHz 400 MHz 128 KB Socket 478 CPU General Features: Intel Celeron processor
2.80 GHz Processor Speed 400 MHz Bus Speed 128 KB L2 Cache 0.13 micron process
FC-PGA2 478-pin package type

Full Specifications

Brand	Intel
CPU Model	Celeron
CPU Speed	2.8 GHz
CPU Socket	Socket 478
Model Number	SL77T - BB810
Mfr Part Number	SL77T
Number of Items	1
Processor Brand	Intel
Processor Count	1
Processor Speed	2.8 GHz
CPU Manufacturer	Intel
Processor Series	Celeron
Processor Socket	Socket 478
Cache Memory Installed Size	0.13 MB

Ready to buy?

Intel Celeron 2.8GHz 400MHz 128KB Socket 478 CPU 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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