Intel

1.7GHz Intel Pentium 4 400MHz 256KB L2 Cache Socket 478 SL5TK

Name: 1.7GHz Intel Pentium 4 400MHz 256KB L2 Cache Socket 478 SL5TK
Brand: Intel
SKU: B004GAMANU

Bottom line: The 1.7GHz Intel Pentium 4 400MHz 256KB L2 Cache Socket 478 SL5TK is a specs-and-price decision rather than a crowd-consensus one in the retro motherboards 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 2026-10-20

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

✓ sSpec: SL5TK

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

sSpec: SL5TK CPU Speed: 1.70 GHz Bus Speed: 400 MHz

SpecPicks Verdict

SpecPicks scored 1.7GHz Intel Pentium 4 400MHz 256KB L2 Cache Socket 478 SL5TK using a rating × review-volume × price-fit model applied to published specs and reviews across the retro motherboards category. Intel's retro motherboards 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 motherboards 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

sSpec: SL5TK
CPU Speed: 1.70 GHz
Bus Speed: 400 MHz
Bus/Core Ratio: 17
L2 Cache Size: 256 KB

Full Specifications

Brand	Intel
Model	SL5TK
Manufacturer	Intel
ItemPartNumber	SL5TK

Ready to buy?

1.7GHz Intel Pentium 4 400MHz 256KB L2 Cache Socket 478 SL5TK 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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