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Intel Core 2 Quad Q9400 - AT80580PJ0676M / BX80580Q9400 / BXC80580Q9400

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Intel Core 2 Quad Q9400 specifications

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General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyIntel Core 2 Quad
Model number  ? Q9400
CPU part numbers
  • AT80580PJ0676M is an OEM/tray microprocessor
  • BX80580Q9400 is a boxed processor with fan and heatsink (English version)
  • BXC80580Q9400 is a boxed processor with fan and heatsink (Chinese version)
Frequency  ? 2.667 GHz / 2667 MHz
Bus speed  ?  
Clock multiplier  ?  
Package 
SocketSocket 775
Introduction date 
Price at introduction 
S-spec numbers
 
Architecture / Microarchitecture
Microarchitecture 
Processor core  ?  
Core stepping  ?  
CPUIDs 
Manufacturing process 
Die 
Data width64 bit
The number of CPU cores4
The number of threads 
Floating Point UnitIntegrated
Level 1 cache size  ?  
Level 2 cache size  ?  
Multiprocessing 
Extensions & Technologies 
Security Features 
Low power features 
Integrated peripherals / components
Integrated graphics 
Electrical / Thermal parameters
V core  ?  
Minimum/Maximum operating temperature  ?  
Minimum/Maximum power dissipation  ?  
Thermal Design Power  ?  
Notes on Intel Core 2 Quad Q9400
 

Popular Core 2 Quad Q9400 comparisons

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Historical price chart

The chart below shows official prices of Intel Core 2 Quad Q9300, Q9400, Q9450, Q9500 and Q9505 processors:

 

FAQ

Q: Can I upgrade my Q9400 CPU?
A: Probably yes. Processor compatibility is determined by your motherboard. Please check CPU-Upgrade.com resource for CPU support list for your board.

Core 2 Quad Q9400 Overclocking

Sorry, we do not have overclocking data for this Intel Core 2 Quad processor at this time.

Intel Q9400 Benchmarks and Performance evaluation

Compare Intel Q9400 benchmark results with all tested CPUs from one of the following families:

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For Q9400 charts, comparing multi- and single-threaded performance of this microprocessor with other Core 2 Quad processors and the fastest AMD and Intel x86 chips, please visit Intel Core 2 Quad Q9400 multi-threaded and single-threaded performance pages.

For averaged performance in integer, floating-point, SIMD and memory-intensive applications please see the next section.


Integer, Floating-Point, SIMD and Memory performance

The graphs below show up to 10 microprocessors with approximately the same level of performance in integer (CPU), floating-point (FPU), SIMD and memory benchmarks. All processors were not overclocked, and were tested at a nominal frequency, with a stock heatsink and default BIOS settings. Click on the '?' mark next to each model name to see specifications of that model, and details of the test platform.

Benchmarked processor:

S-spec number:SLB6B
CPU ID:067Ah
CPU vendor string:GenuineIntel
CPU name string:Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz

Integer performance

 

Floating Point performance

 

MMX / SSE / SSE2 performance

 

Memory-intensive program performance

 

CPU ID information for the Core 2 Quad Q9400

Detailed characteristics of processor's internals, including x86 instruction set extensions and individual instructions, high- and low-level technologies, are listed below. This list was acquired from an actual Intel Core 2 Quad Q9400 processor with the help of the x86 CPUID instruction. Any discrepancies between CPUID features and official specifications are likely due to some features being disabled in BIOS, or due to a bug in our CPUID decoding algorithm. Different steppings of Intel processors may also have slightly different features.

Our CPUID database contains 14 records for this microprocessor. See all submitted records.

Use our CPU identification tool to check features of your processor.

Submission details
Manufacturer:IntelMeasured frequency:2666 MHz
CPU Family:Core 2 QuadComment:1067A (QHHU, SLB6B)
Processor Number:Q9400 
Part number (supplied):AT80580PJ0676MSubmitted by:GEARHEAD
Part number (guessed):
AT80580PJ0676M
Submitted on:
S-Spec Number:CWID version:0.5
General information
 

Cache details
 

Supported instructions
 

Integrated features and technologies
 

CPUs, related to Intel Core 2 Quad Q9400

The list of related CPUs does not include all models. For the complete list, please see the related "Core" processors for socket 775 page.

Model Cores /
Threads		 Frequency L2
cache		 TDP Features  
Intel Core 2 Quad family, Socket 775
   Core 2 Quad Q84004 / 42.66 GHz   >
   Core 2 Quad Q8400S4 / 42.66 GHz   >
   Core 2 Quad Q94004 / 42.66 GHz    
   Core 2 Quad Q9400S4 / 42.66 GHz   >
   Core 2 Quad Q67004 / 42.66 GHz   >
   Core 2 Quad Q95004 / 42.83 GHz   >
   Core 2 Quad Q95054 / 42.83 GHz   >
   Core 2 Quad Q9505S4 / 42.83 GHz   >
   Core 2 Quad Q94504 / 42.66 GHz   >
   Core 2 Quad Q9450S4 / 42.66 GHz   >
   Core 2 Quad Q95504 / 42.83 GHz   >
   Core 2 Quad Q9550S4 / 42.83 GHz   >
   Core 2 Quad Q97004 / 43.16 GHz   >
   Core 2 Quad Q97054 / 43.16 GHz   >
   Core 2 Quad Q96504 / 43 GHz   >
Other families, Core micro-architecture, Socket 775
   Celeron 440 (B)1 / 12 GHz   >
   Celeron 4501 / 12.2 GHz   >
   Celeron E34002 / 22.6 GHz   >
   Celeron E35002 / 22.7 GHz   >
   Pentium E68002 / 23.33 GHz   >
   Core 2 Duo E85002 / 23.16 GHz   >
   Core 2 Duo E86002 / 23.33 GHz   >
   Core 2 Extreme QX96504 / 43 GHz   >
   Core 2 Extreme QX97704 / 43.2 GHz   >
 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)
 • Background color of specs and features indicate whether they are better or worse than similar spec/feature of the Core 2 Quad Q9400
 • Click on the >  icon to compare any CPU in the table with the Intel Core 2 Quad Q9400 (Javascript required).
 • Features abbreviations:
VT - Virtualization
TXT - Trusted Execution technology
ESS - Enhanced SpeedStep

Pictures (5)

Back view of the box
2009-10-02 20:41:28
Posted by: gshv

  		Back view of the box
Side view
2009-10-02 20:41:58
Posted by: gshv

  		Side view
Core 2 Quad Q9400 box - front view
2009-10-02 20:42:46
Posted by: gshv

  		Core 2 Quad Q9400 box - front view
 
2009-10-02 20:43:08
Posted by: gshv

  		 
Core 2 Quad Q9400 CPU
2009-10-02 20:43:55
Posted by: gshv

S-spec number SLB6B 		Core 2 Quad Q9400 CPU
Comments (0)

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Last modified: 3 Nov 2022
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