Intel Core 2 Quad Processor Q9550 2.83GHz 1333MHz 12 MB LGA775 EM64T CPU BX80569Q9550

Name: Intel Core 2 Quad Processor Q9550 2.83GHz 1333MHz 12 MB LGA775 EM64T CPU BX80569Q9550
Brand: Unbranded
SKU: B0012WDMNC
Price: 161.00 USD
Availability: InStock

Bottom line: The Intel Core 2 Quad Processor Q9550 2.83GHz 1333MHz 12 MB LGA775 EM64T ($161.00 on Amazon as of 2026-10-06): Quad-core 2.83GHz on LGA775 drops into vintage Socket 775 desktop boards; main trade-off: 45nm Yorkfield core trails any modern CPU by a wide margin.

$161.00

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🛒 See live eBay price Also on Amazon — $161.00 Compare to similar retro cpus

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-06

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 →

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

✓ Quad-core 2.83GHz on LGA775 drops into vintage Socket 775 desktop boards
✓ Large 12MB L2 cache aids multitasking and older-title gaming
✓ 1333MHz FSB pairs with P45/X48 DDR2/DDR3 chipsets
✓ EM64T 64-bit support runs 64-bit XP/Vista/7-era operating systems

Cons

✗ 45nm Yorkfield core trails any modern CPU by a wide margin
✗ No integrated graphics, so a discrete GPU is required
✗ LGA775 platform caps you at DDR2/DDR3 and PCIe 2.0
✗ Runs warm under load; needs a capable Socket 775 cooler

Manufacturer description

Intel Core 2 Quad Processor Q9550 2.83GHz 1333MHz 12MB LGA775 EM64T CPU

SpecPicks Verdict

SpecPicks scored Intel Core 2 Quad Processor Q9550 2.83GHz 1333MHz 12 MB LGA775 EM64T… 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

Processor Type - Intel Core 2 Quad
Product Type - CPU
Clock Speed - 2.8GHz
Product Type - CPU
Processor Type - Intel Core 2 Quad
Clock Speed - 2.8GHz

Full Specifications

Brand	Intel
Wattage	95 watts
Platform	Windows
CPU Model	Core 2 Quad
CPU Speed	2.83 GHz
CPU Socket	LGA 775
Model Number	BX80569Q9550
Mfr Part Number	BX80569Q9550
Processor Brand	Intel
Processor Count	4
Processor Speed	2.83 GHz
Secondary Cache	12 MB
CPU Manufacturer	Intel
Item Part Number	BX80569Q9550
Processor Series	Core 2 Quad
Processor Socket	LGA 775
Processor Core Count	4
Cache Memory Installed Size	12
Global Trade Identification Number	00735858197380, 05032037008037
Processor Number of Concurrent Threads	4

Ready to buy?

Intel Core 2 Quad Processor Q9550 2.83GHz 1333MHz 12 MB LGA775 EM64T CPU BX80569Q9550 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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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.