CPUBoss Review Our evaluation of Q6600 vs E4400 among desktop CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

3.5

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Quad Q6600 

CPUBoss recommends the Intel Core2 Quad Q6600  based on its performance and single-core performance.

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VS

Differences What are the advantages of each

Front view of Intel Core2 Quad Q6600

Reasons to consider the
Intel Core2 Quad Q6600

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Much better PassMark score 2,970 vs 1,161 More than 2.5x better PassMark score
Much better PassMark (Single core) score 924 vs 733 More than 25% better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 4,161 vs 1,798 More than 2.2x better geekbench 2 (32-bit) score
Significantly higher clock speed 2.4 GHz vs 2 GHz Around 20% higher clock speed
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 3.52 GHz vs 3.16 GHz More than 10% better overclocked clock speed (Air)
Higher Maximum operating temperature 62.2 °C vs 61.4 °C Almost the same
Slightly better overclocked clock speed (Water) 3.6 GHz vs 3.53 GHz Almost the same
Front view of Intel Core2 Duo E4400

Reasons to consider the
Intel Core2 Duo E4400

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Much lower typical power consumption 52.81W vs 85.31W Around 40% lower typical power consumption
Much lower annual commercial energy cost 56.94 $/year vs 91.98 $/year Around 40% lower annual commercial energy cost
Much lower annual home energy cost 15.66 $/year vs 25.29 $/year Around 40% lower annual home energy cost

Benchmarks Real world tests of Core2 Quad Q6600 vs Duo E4400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Quad Q6600
102,800 MB/s
Core2 Duo E4400
85,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Quad Q6600  vs
Duo E4400 
Clock speed 2.4 GHz 2 GHz
Cores Quad core Dual core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE3
SSE
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 105W 65W
Annual home energy cost 25.29 $/year 15.66 $/year
Annual commercial energy cost 91.98 $/year 56.94 $/year
Performance per watt 1.19 pt/W 1.25 pt/W
Typical power consumption 85.31W 52.81W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 800 MHz

details

Core2 Quad Q6600  vs
Duo E4400 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 8 MB 2 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 65 nm
Transistor count 582,000,000 167,000,000
Max CPUs 1 1
Clock multiplier 9 10
Voltage range 0.85 - 1.5V 0.85 - 1.5V
Operating temperature Unknown - 62.2°C Unknown - 61.4°C

overclocking

Overclocked clock speed 3.52 GHz 3.16 GHz
Overclocked clock speed (Water) 3.6 GHz 3.53 GHz
Overclocked clock speed (Air) 3.52 GHz 3.16 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Core2 Quad Q6600
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Intel Core2 Duo E4400
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