fosa1

X5650 CPU, Six Core Twelve Threads 2.66GHz 12M Cache LGA1366 6.4 GT,s 95W DDR3 800,1066,1333 SSE4.2 Maximum 3 Memory Channels Maximum 32GB,s Memory Bandwidth

Name: X5650 CPU, Six Core Twelve Threads 2.66GHz 12M Cache LGA1366 6.4 GT,s 95W DDR3 800,1066,1333 SSE4.2 Maximum 3 Memory Channels Maximum 32GB,s Memory
Brand: fosa1
SKU: B08FJD5LDC
Price: 18.99 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-08-21

$18.99

Buy on Amazon — $18.99 Compare to similar processors

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The X5650 CPU, Six Core Twelve Threads 2.66GHz 12M Cache LGA1366 6.4 GT,s 95W DDR3 800,1066,1333 SSE4.2 Maximum 3 Memory Channels Maximum 32GB,s Memory Bandwidth is a niche pick — read recent reviews before buying in the processors category, priced around $18.99. Read recent reviews carefully before committing.

Specifications:Material: MetalSize: Approx. 4.5*4.2*0.5cm/1.77*1.65*0.20inchCore Quantity: SixThreads Quantity: TwelveProcessor base frequency: 2.66GHzMaximum Turo frequency: 3.06GHzCache: 12MB SmartCacheBus Speed: 6.4 GT/sLink: 2TDP: 95WVID Voltage Frequency: 0.750V-1.350VMaximum memory (depends on memory type): 288GBMemory type: DDR3 800/1066/1333Maximum memory channels quantity: 3Maximum memory bandwidth: 32GB/sPhysical address extension: 40-bitECC Memory support: YESSupport slot: FCLGA1366Maximum CPU configuration: 2For Turbo Boost Technology 1.0For Hyper-Threading Technology: yesFor…

SpecPicks Verdict

SpecPicks classifies X5650 CPU, Six Core Twelve Threads 2.66GHz 12M Cache LGA1366 6.4… as a niche pick — read recent reviews before buying in the processors category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. fosa1'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 processors 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

✓ This product is made of metal material, strong and .
✓ Backed by fosa1'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

Key Features

This product is made of metal material, strong and .
Code name is for series X5650, six-core twelve threads, up to 2.66GHz basic frequency, super performance.
95W power consumption, 12M cache, 6.4GT/s bus.
LGA 1366 interface for motherboards of the X58, and servers.
Support for Hyper-Threading Technology, for Virtualization Technology and other technology.

Full Specifications

Brand	fosa1
Wattage	95 watts
Platform	Windows 10
CPU Speed	3.06 GHz
CPU Socket	LGA 1366
Unit Count	1 Count
Model Number	fosa4ycn78izud
Mfr Part Number	fosa4ycn78izud
Processor Brand	Intel
Processor Count	6
Processor Speed	3.06 GHz
Secondary Cache	12 MB
CPU Manufacturer	Intel
Processor Socket	LGA 1366

Ready to buy?

X5650 CPU, Six Core Twelve Threads 2.66GHz 12M Cache LGA1366 6.4 GT,s 95W DDR3 800,1066,1333 SSE4.2 Maximum 3 Memory Channels Maximum 32GB,s Memory Bandwidth 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.

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*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.