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Intel Core 2 Quad Q6600 vs Q9400

Mini Review

Intel Core 2 Quad Q6600 advantages

  • None

Intel Core 2 Quad Q9400 advantages

  • Single-threaded performance of this processor is better.
  • In multi-threaded applications, the Intel Q9400 has 15% higher performance.
  • The microprocessor is 3% faster in memory-intensive programs.
  • The CPU features SSE4.1 instructions.
  • Power consumption of the processor is lower.

Q6600 vs Q9400 performance comparison

The charts below demonstrate relative performance of Core 2 Quad Q6600 and Core 2 Quad Q9400 CPUs in a few different kinds of programs. The numbers for 'Single-threaded performance', 'Multi-threaded performance' and 'Discrete Graphics performance' charts are calculated as an average of several related benchmarks, that you can see in the "Benchmarks" tab. As a result, the shown results may differ from results, that you may receive in individual tests. We also averaged the numbers for task type specific benchmarks and all-around performance benchmarks, and presented them in the 'Overall performance' chart.
Single-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.15
 
 
Higher is better
Multi-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.15
 
 
Higher is better
Memory-intensive applications
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.03
 
 
Higher is better
Discrete Graphics performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1
 
 
Higher is better
Overall performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.08
 
 
Higher is better
 

  - Intel Core 2 Quad Q6600       - Intel Core 2 Quad Q9400

Full list of benchmarks, that show difference in performance between Intel Q6600 and Q9400 in various types of programs, can be found in the "Benchmarks" tab.


Q6600 vs Q9400 power consumption comparison

Thermal Design Power
200
160
120
80
40
0
 
 
105W
 
95W
 
 
Lower is better
 

Detailed side by side comparison of Q6600 vs Intel Core 2 Quad Q9400 specs can be found in the "Specifications" tab. Even more detailed comparison of low level features of both processors is located in the "CPUIDs" tab.


Pros and Cons summary

Core 2 Quad Q6600 Core 2 Quad Q9400
General recommendations:
None
  General recommendations:
Performs a bit better in all types of applications,
Supports SSE4.1 instructions,
Needs less power

Drawbacks:

Performs insignificantly worse in all kinds of programs,
Lacks some instructions,
Higher power
 

Drawbacks:

None

Similar processors

Core 2 Quad Q6600 Core 2 Quad Q9400
 

Similar microprocessors use the same socket and architecture as Intel Core 2 Quad Q6600 and Core 2 Quad Q9400, however their performance and other characteristics are a bit different.


Where to buy


The CPUs are obsolete. If you are looking for one of them, the best place to check are online auction websites, like eBay. Third party vendors at Amazon may also have them for sale.
Jump to:
  • Benchmarks
  • CPUIDs
  • Comments
 

Popular comparisons:

More comparisons

Compare Intel Core 2 Quad Q6600 with...

Other Core 2 Quad CPU:

Any CPU:


Compare Intel Core 2 Quad Q9400 with...

Other Core 2 Quad CPU:

Any CPU:


Note: To see differences with any CPU, type in any combination of the following into the "Any CPU" field: manufacturer name, full or partial family name, model number, part number, core name, socket name, operating frequency, bus speed (must have FSB suffix), and the last level cache. Here are some valid searches:

  i5-3570K
  Intel Celeron 2 GHz
  Core
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit Intel Core 2 Quad Q6600 and Intel Core 2 Quad Q9400 pages for more detailed specifications of both microprocessors.

 Intel Core 2 Quad Q6600Intel Core 2 Quad Q9400
Market segmentDesktop
ManufacturerIntel
FamilyCore 2 Quad
Basic details
Model numberQ6600Q9400
CPU part numberHH80562PH0568MAT80580PJ0676M
Box part numberBX80562Q6600BX80580Q9400
BXC80580Q9400
Introduction dateJanuary 8, 2007August 10, 2008
 
CPU features
Core nameKentsfieldYorkfield
MicroarchitectureCore
Technology (micron)0.0650.045
Data width (bits)64
SocketSocket 775
Frequency (MHz)24002667
Bus speed (MHz)10661333
Clock Multiplier98
L1 cache128 KB (code) / 128 KB (data)
L2 cache (KB)81926144
Max temperature (°C)60.371.4
TDP (Watt)10595
Max power dissipation (Watt)155.25132.48
Core voltage (V)0.85 - 1.50.85 - 1.3625
Cores4
Threads4
Multiprocessing1
 
Instruction set extensions
AMD64 / EM64T 64-bit technology+
MMX+
SSE+
SSE2+
SSE3+
SSE4.1-+
SSSE3 / Supplemental SSE3+
 
Supported technologies
PowerNow! / Enhanced SpeedStep+
Trusted Execution-+
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNone
 
Integrated Memory Controller(s)
The number of controllers0
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "Intel Core 2 Quad Q6600" or "Intel Core 2 Quad Q9400" parts please click on the links in the table header.

Benchmarks

System setup

Intel Core 2 Quad Q6600 and Q9400 processors were tested using different system components, that are identified by MB, RAM and VID columns in the tables below. The numbers in each of these columns correspond to one of motherboards (MB), memory configurations (RAM) or graphics adapters (VID), listed below:

MB - Motherboard(s):
1. ASROCK 4CORE1600TWINS-P35
2. INTEL DP965LT

RAM - Memory:
1. 2 GB DUAL-CHANNEL CORSAIR CM3X1024-1333C9 DDR3
2. 2GB DUAL-CHANNEL CORSAIR CM2X1024-6400C4

VID - Video card(s):
1. POWERCOLOR 24PRO256M DDR2 (ATI RADEON HD2400)

All tests were performed at default frequency and voltage, using manufacturer's stock fan/heatsink. None of the components were overclocked. Motherboard BIOS options were left at default settings.

The results of all benchmarks are broken into four categories: multi-threaded, single-threaded, memory intensive and graphics / gaming.


Core 2 Quad Q6600 vs Q9400 single-threaded benchmarks

Single-threaded benchmarks run on a single CPU core, and do not depend on such features as the number of cores, or Hyper-Threading technology. Additionally, they do not utilize on-chip caches, dedicated to other cores.

     

    Intel Core 2 Quad Q6600           Intel Core 2 Quad Q9400

3DMark03 CPU score benchmark

Uses DirectX software vertex shader to run Wings of Fury and Trolls' Lair games, and calculates a 3DMark03 CPU score based on averaged number of frames per second, achieved by the CPU/GPU combination.
Longer is better <MBRAMVID
100%111
95.4%111
84.7%221

CINEBENCH R10 CPU score (1 core) benchmark

Measures performance of a single-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
Longer is better <MBRAMVID
100%111
84.2%111
84.1%221

PCMark2002 CPU score benchmark

Longer is better <MBRAMVID
100%111
90.3%111
89.7%221

Super PI (1M) benchmark

Measures time, required to calculate the first 1 million digits after the decimal point in the number Pi.
Longer is better <MBRAMVID
100%111
90.4%111
90.0%221


Core 2 Quad Q6600 vs Q9400 multi-threaded benchmarks

Multi-threaded benchmarks utilize all CPU cores and other on-chip resources (on-chip caches, internal buffers, etc). Intel's Hyper-Threading feature also helps to improve multi-threading performance.

     

    Intel Core 2 Quad Q6600           Intel Core 2 Quad Q9400

CINEBENCH R10 CPU score benchmark

Measures performance of multi-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
Longer is better <MBRAMVID
100%111
85.0%221
85.0%111

CINEBENCH R10 render time (seconds) benchmark

Measures time taken to render a photo-realistic 3D image using CINEMA 4D software engine.
Longer is better <MBRAMVID
100%111
85.1%221
85.0%111

Euler3D benchmark

Longer is better <MBRAMVID
100%111
93.7%111
92.2%221

Sandra Dhrystone (MIPS) benchmark

Runs Dhrystone test on all cores, and reports estimated integer performance in MIPS (Millions of Instructions Per Second).
Longer is better <MBRAMVID
100%111
89.6%111
89.4%221

Sandra MultiMedia Floating Point (it/s) benchmark

Longer is better <MBRAMVID
100%111
90.4%111
90.1%221

    Intel Core 2 Quad Q6600           Intel Core 2 Quad Q9400

Sandra MultiMedia Integer (it/s) benchmark

Longer is better <MBRAMVID
100%111
90.2%111
90.1%221

Sandra Whetstone (MFLOPS) benchmark

Runs Whetstone test on all cores, and reports estimated floating-point performance in MFLOPS (Millions of Floating-Point Operations Per Second).
Longer is better <MBRAMVID
100%111
83.4%111
83.1%221

Sandra Whetstone SSE2 (MFLOPS) benchmark

Runs SSE2-enabled Whetstone test on all cores, and reports estimated floating-point performance in MFLOPS (Millions of Floating-Point Operations Per Second).
Longer is better <MBRAMVID
100%111
80.0%221
79.8%111

wPrime v1.55 (32M) benchmark

wPrime benchmark measures time taken to calculate square roots of numbers from 1 to 33554431.
Longer is better <MBRAMVID
100%111
83.9%111
83.9%221


Core 2 Quad Q6600 vs Q9400 graphics benchmarks

Graphics benchmarks depend on the type of integrated or discrete graphics adapter, and to less extent on the processor performance. Because these benchmarks are synthetic, they may not truly represent gaming performance. However, they still can be used to estimate whether one processor will perform faster or slower than another CPU in games and other 3D tasks.

     

    Intel Core 2 Quad Q6600           Intel Core 2 Quad Q9400

3DMark03 game score benchmark

Measures graphics and 3D game performance of discrete and integrated GPUs using 4 different game simulations, that have varying level of DirectX support from version 7 to version 9.
Longer is better <MBRAMVID
100%111
99.9%111
99.7%221

3DMark2001 score benchmark

Runs a series of game simulations and feature tests to measure graphics and 3D game performance of discrete and integrated GPUs. It utilizes a single CPU core, and it is compatible with DirectX 8 and later APIs.
Longer is better <MBRAMVID
100%111
98.7%111
98.3%221

CINEBENCH R10 OpenGL score benchmark

Longer is better <MBRAMVID
100%111
98.6%221
97.3%111


Core 2 Quad Q6600 vs Q9400 memory performance

Memory-intensive tests or programs move large amounts of data to/from memory, and they depend more on memory throughput and the size of on-chip caches, rather than on CPU integer/FP/SIMD performance.

     

    Intel Core 2 Quad Q6600           Intel Core 2 Quad Q9400

7Zip compressing/decompressing speed (1 thread) benchmark

Longer is better <MBRAMVID
100%111
91.2%111
90.7%221

PCMark2002 Memory score benchmark

Longer is better <MBRAMVID
100%111
93.0%111
92.9%221

WinRAR compressing/decompressing speed benchmark

Longer is better <MBRAMVID
100%111
97.3%111
96.3%221

CPUIDs

The table below compares two random CPUID records for Intel Core 2 Quad Q6600 and Intel Core 2 Quad Q9400 microprocessors, that were submitted to our CPUID database. Please note that different steppings of Intel processors, identified by S-spec numbers or CPUID, may have slightly different features. For that reason the comparison table below only applies to CPUs with specific S-Spec number / CPUID.

  CPUID 1 CPUID 2
ManufacturerIntel
CPU FamilyCore 2 Quad
Model / Processor Number2.40 GHzQ9400
Frequency2397 MHz2666 MHz
CWID version0.3
Part numberHH80562PH0568MAT80580PJ0676M
S-Spec / Stepping CodeSL9UMSLB6B
 
General information
VendorGenuineIntel
Processor name (BIOS)Intel(R) Core(TM)2 Quad CPU @ 2.40GHzIntel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz
Cores4
Logical processors4
Processor typeOriginal OEM Processor
CPUID signature6F71067A
Family 6 (06h)
Model15 (0Fh)23 (017h)
Stepping 7 (07h)10 (0Ah)
TLB/Cache details3rd-level cache: 4-MB, 16-way set associative, 64-byte line size (Intel Xeon processor MP, Family 0Fh, Model 06h), 2nd-level cache: 4-MB, 16-way set associative, 64-byte line size
64-byte Prefetching
Data TLB: 4-KB Pages, 4-way set associative, 256 entries
Data TLB: 4-MB Pages, 4-way set associative, 32 entries
Instruction TLB: 2-MB pages, 4-way, 8 entries or 4M pages, 4-way, 4 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 128 entries
L1 Data TLB: 4-KB pages, 4-way set associative, 16 entries
L1 Data TLB: 4-MB pages, 4-way set associative, 16 entries
64-byte Prefetching
Data TLB: 4-KB Pages, 4-way set associative, 256 entries
Data TLB: 4-MB Pages, 4-way set associative, 32 entries
Instruction TLB: 2-MB pages, 4-way, 8 entries or 4M pages, 4-way, 4 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 128 entries
L1 Data TLB: 4-KB pages, 4-way set associative, 16 entries
L1 Data TLB: 4-MB pages, 4-way set associative, 16 entries
 
Cache
L1 data: Associativity8-way set associative
L1 data: Line size64 bytes
L1 data: Size32 KB
L1 instruction: Associativity8-way set associative
L1 instruction: Line size64 bytes
L1 instruction: Size32 KB
L2: Associativity16-way set associative8-way set associative
L2: Comments unified on-die
L2: Line size64 bytes
L2: Size4 MB3 MB
 
Instruction set extensions
MMX+
SSE+
SSE2+
SSE3+
SSE4.1-+
SSSE3+
 
Additional instructions
CLFLUSH+
CMOV+
CMPXCHG16B+
CMPXCHG8B+
FXSAVE/FXRSTORE+
MONITOR/MWAIT+
SYSENTER/SYSEXIT+
XSAVE/XRESTORE states-+
 
Major features
64-bit / Intel 64+
Enhanced SpeedStep+
Intel Trusted Execution technology-+
Intel Virtualization+
NX bit/XD-bit+-
On-chip Floating Point Unit+
 
Other features
36-bit page-size extensions+
64-bit debug store+
Advanced programmable interrupt controller+
CPL qualified debug store+
Debug store+
Debugging extensions+
Digital Thermal Sensor capability+
LAHF/SAHF support in 64-bit mode+
Machine check architecture+
Machine check exception+
Memory-type range registers+
Model-specific registers+
Page attribute table+
Page global extension+
Page-size extensions (4MB pages)+
Pending break enable+
Perfmon and Debug capability+
Physical address extensions+
Self-snoop+
Thermal monitor+
Thermal monitor 2+
Thermal monitor and software controlled clock facilities+
Time stamp counter+
Virtual 8086-mode enhancements+
xTPR Update Control+
+ - feature is supported
- - feature is not supported
Features, not supported by all processors in the table, are not displayed

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