Intel Pentium D 820 2.8GHz 800MHz 2x1MB Socket 775 Dual-Core CPU

Name: Intel Pentium D 820 2.8GHz 800MHz 2x1MB Socket 775 Dual-Core CPU
Brand: Unbranded
SKU: B001BPWXG2

Bottom line: The Intel Pentium D 820 2.8GHz 800MHz 2x1MB Socket 775 Dual-Core 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

✓ Intel Pentium D 820 2.80 GHz 800 MHz 2 MB Socket 775 Dual-Core CPU General Features:

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

Intel Pentium D 820 2.8GHz 800MHz 2x1MB Socket 775 Dual-Core CPU

SpecPicks Verdict

SpecPicks scored Intel Pentium D 820 2.8GHz 800MHz 2x1MB Socket 775 Dual-Core 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 Pentium D 820 2.80 GHz 800 MHz 2 MB Socket 775 Dual-Core CPU General Features:
Intel Pentium D Processor 820 2.80 GHz CPU speed 800 MHz bus speed 2 MB L2 Cache
Package Type: LGA 775 Core Voltage: 1.25 V - 1.4 V Dual Core Execute Disable Bit Intel EM64T

Full Specifications

Brand	Intel
CPU Model	Pentium
CPU Speed	2.8 GHz
CPU Socket	LGA 775
Unit Count	1 Count
Model Number	PD820280775-R
Package Type	LGA 775 Core Voltage: 1.25 V - 1.4 V Dual Core Execute Disable Bit Intel EM64T
Mfr Part Number	PD820280775-R
Processor Brand	Intel
Processor Count	2
Processor Speed	2.8 GHz
Secondary Cache	2 MB
CPU Manufacturer	Intel
Processor Series	Pentium
Processor Socket	LGA 775
Cache Memory Installed Size	2 MB

Ready to buy?

Intel Pentium D 820 2.8GHz 800MHz 2x1MB Socket 775 Dual-Core 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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