Matched Pair Intel Xeon X5660 2.8GHz CPU SLBV6 12M 6 Core LGA1366 Processor

new-future-technology
(17892)
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US $23.10/ea
Condition:
Used
More than 10 available
Bulk savings quantity 1
Bulk savings:
Buy 3 or more for 22.64 each one

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US $3.30 eBay SpeedPAK Standard.
Located in: shenzhen, China
This item includes applicable import fees—you won’t pay anything extra after checkout.
Import fees:
Includes import fees
Delivery:
Estimated between Tue, Dec 16 and Mon, Dec 22 to 94104
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60 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
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eBay item number:135466360794
Last updated on Nov 26, 2025 09:31:22 PSTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is ...
Country of Origin
China
Brand
Intel
Bus Speed
2800 MHz
Clock Speed
2.8GHz
L2 Cache
6 x 256 KB
L3 Cache
12 MB
MPN
SLBV6
Number of Cores
6
Processor Model
X5660
Processor Type
Xeon
Socket Type
LGA1366
UPC
Does not apply
Category

Item description from the seller

About this seller

new-future-technology

99.1% positive feedback•70K items sold

Joined Sep 2010
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.8
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

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CPUs, ProcessorsHDD/Hard Disk Drivesvideo cardDiskMemory/RAMmainboardI/O shieldOther

Seller feedback (18,894)

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  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    This eBay seller is awesome! Very highly motivated and very ethical. I actually had a problem with the item and this seller has worked tirelessly to resolve it and came up with a great solution. Rest assured if you purchase something, they will back the product. Very trustworthy seller and highly recommended! Also international postage was fast.
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    the first one was defective but they sent a replacement and it works good and the seller stands by his word i tested 2 cpu 2 different memory and power supply on the first defective one like they asked second replacement they sent took a little extra time and they even tracked it leaving me updates and when it arived i tested it and everything worked with no problems and they stand behind their word negative replacement took longer then the first one
  • *****- Feedback left by buyer.
    Past year
    Verified purchase
    Very pleased with this seller and the prompt processing of my order. The item was received 9 days after ordering and international shipping and was as described. Tracking history was updated frequenty. Highly recommend this seller.
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Product ratings and reviews

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4.9
91 product ratings
  • 82 users rated this 5 out of 5 stars
  • 8 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Performs well

Reliable

Easy to install

Most relevant reviews

See all 54 reviews
  • by marcelluhorto0
    Mar 13, 2018Top favorable review

    Great bang for the buck cpu once you get past the bios issuse and compatibility.

    Make sure you have the latest bios before installing. you can get a E5540 for about $5 bucks that works with most of the factory bios for the x58 socket boards this CPU works if you want to test and update the bios before buying or run into issues with the board not posting. I had a ASUS motherboard at first that wouldn't support the X5660 but I didn't try a different bios. I'm using a Intel DX58SO Motherboard now that actually doesn't list this CPU as compatible, but with a simple update to the latest bios this CPU worked. So, 6 Cores/ 12 Threads/ 12mb L3 Cache/ 32nm/ 2.8 GHz Base Clock, but runs at about 3.1 GHz without overclocking for only $35 bucks, you can't beat that. Very happy.

    Verified purchase: YesCondition: Pre-OwnedSold by: serverplus365

  • by elcaminoguy
    Sep 27, 2017

    Best Upgrade option for an X58 based System

    X58 is the Intel chipset launched in 2008 that put Intel back on the map. Until Ryzen, nothing made as much of an impact on the enthusiast PC market. But almost 10 years later it's getting long in the tooth even with recent X58 offerings like the 980 and 990X processors. The X5660 Xeon, however, is a sever CPU. That means things like 6 cores, 12 threads, TPM, VT-D, better power efficiency (and less heat) from the 32nm Westmere cores. Other than about 10 minutes of research to figure out BIOS settings you can instantly have a faster, more efficient Xeon living where your old I7 920 used to be. For me the X5660 has taken an I7 940 from 23000 to 36000 points in 3DMark Vantage with nothing more than this CPU and a BIOS upgrade. In short, best bang for your X58 upgrade buck.

    Verified purchase: YesCondition: Pre-OwnedSold by: techy_parts

  • by schalazeal
    Aug 21, 2017

    Awesome Processor

    I received the Xeon within a few days though wasn't able to install it right away. Check and make sure your motherboard supports it, especially if you have an X58 board. Make sure that board has the latest BIOS. The problem I had was that I had the earliest revision of my EVGA X58 board. With that board, there was no BIOS released that would allow it to support a Xeon. I had to physically modify the motherboard, which requires micro-soldering, to allow the Xeon to work in my X58. So check and check again. If you are buying a board to go with this, go with the latest revision of that board you can find. Everything else was great!

    Verified purchase: YesCondition: Pre-OwnedSold by: red-door-tech

  • by aikon_art
    Sep 08, 2016

    Big change from the XEON E5520 i used before.

    I replace both of my Xeon E5520 with these six core processors. the difference was bigger than i expected and i assume that it also has to do with the newest manufacturing technology vs my previous processors (except the Ghz increase) The installation needs a little attention and i recommend to spent 5-10$ for a good quality thermal paste and review a couple of related with the installation videos prior of any action, if this is your first time. If you have done this in the past no special treatment is needed. i recommend this upgrade as the cost is not high and the performance improvement is big - especially if you are working on 3D-cad.

    Verified purchase: YesCondition: Pre-OwnedSold by: wychoi63

  • by davus-bntazm
    Aug 28, 2016

    Best value for money CPU for the X58 platform

    This CPU is literally the best value for money option out there for people with X58 motherboards. simply flash your BIOS to the latest revision using your old CPU then pop in this bad boy and now you have a cheap 6 core 12 thread 32nm beast. plus these CPUs overclock very well to since they are binned higher. i would highly recommend this CPU for people that already have an X58 system and are looking to extend its life. for those who want to build an X58 system from scratch i wouldn't recommend this CPU but would instead recommend its much cheaper 4 core 8 thread brother the E5640.

    Verified purchase: YesCondition: Pre-OwnedSold by: wdd60

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