Intel Core 2 Quad Q8400 2.6 GHz Quad-Core Quad-Thread CPU Processor 4M 95W LGA 775
ID: 10002

Intel Core 2 Quad Q8400 2.6 GHz Quad-Core Quad-Thread CPU Processor 4M 95W LGA 775

4.9 (319 votes) | 647 orders
Price: US $22.23 - 23.09 / piece
Discount Price:
US $ 16.67 - 17.32 / piece
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Intel Core 2 Quad Q8400 specifications

General information


CPU / Microprocessor

Market segment



Intel Core 2 Quad

Model number?


CPU part numbers

  • AT80580PJ0674MLis an OEM/tray microprocessor

  • AT80580PJ067HLis an OEM/tray microprocessor

  • BX80580Q8400is a boxed processor with fan and heatsink (English version)

  • BXC80580Q8400is a boxed processor with fan and heatsink (Chinese version)


2667 MHz

Bus speed?

1333 MHz

Clock multiplier?



775-land Flip-Chip Land Grid Array (FC-LGA8)
1.48" x 1.48" (3.75 cm x 3.75 cm)


Socket 775

Introduction date

Apr 19, 2009

End-of-Life date

Last order date is August 26, 2011
Last shipment date for tray processors is February 10, 2012

Price at introduction


S-spec numbers

Part number

ES/QS processors

Production processors











Architecture / Microarchitecture



Processor core?


Core stepping?



1067A (QLQN, SLGT6)

Manufacturing process

0.045 micron
456 million transistors



Data width

64 bit

The number of CPU cores


The number of threads


Floating Point Unit


Level 1 cache size?

4 x 32 KB 8-way set associative instruction caches
4 x 32 KB 8-way set associative data caches

Level 2 cache size?

2 x 2 MB 8-way set associative caches (each L2 cache is shared between 2 cores)




  • MMX instructions

  • SSE / Streaming SIMD Extensions

  • SSE2 / Streaming SIMD Extensions 2

  • SSE3 / Streaming SIMD Extensions 3

  • SSSE3 / Supplemental Streaming SIMD Extensions 3

  • SSE4.1 / Streaming SIMD Extensions 4.1?

  • EM64T / Extended Memory 64 technology / Intel 64?

  • NX / XD / Execute disable bit?

  • VT-x / Virtualization technology?

Low power features

  • Enhanced SpeedStep technology?

  • Stop Grant state?

  • Halt state

  • Extended Halt state

  • Extended Stop Grant State

  • Sleep state?

  • Deep Sleep state?

  • Deeper Sleep state?

Integrated peripherals / components

Integrated graphics


Electrical / Thermal parameters

V core?

0.85V - 1.3625V

Minimum/Maximum operating temperature?

5°C - 71.4°C

Thermal Design Power?

95 Watt

  • Brand Name: Intel
  • Intel Model: Intel Core 2 Quad Q8400
  • Support Memory Channels: 2pcs
  • Application: Desktop
  • Number OF Therads: 4
  • Usage Scenario: Others
  • Support Memory Type: DDR2
  • Support Chipset Models: Intel Others
  • Processor Type: Intel Core 2 Quad
  • Chip Process: 45 nanometers
  • Default TDP / TDP: 95W
  • Origin: MY(Origin)
  • Unlocked: No
  • Socket Type: LGA 775
  • Type: Quad-Core
  • GPU-built: Yes
  • Launch Date: 2004
  • L3 Cache Capacity: N/AMB
  • Number of Cores: Quad-Core
  • Package: No
  • L2 Cache Capacity: 4MBMB
  • Model Number: Intel Core 2 Quad Q8400
  • Warranty: One year warranty


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How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some location we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time(60 days not including 2-5 day processing) you can request a refund or a reshipment.

If you received the wrong item you can request a refund or a reshipment.

If you do not want the product you’ve receive you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
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  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (60 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.



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