CPUBoss Review Our evaluation of E8400 vs E6600

Performance

Benchmark performance using all cores

Passmark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Overclocking

How much speed can you get out of the processor?

overclock popularity

Value

Are you paying a premium for performance?

Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Overclocking and Value

Winner
Intel Core2 Duo E8400 

CPUBoss recommends the Intel Core2 Duo E8400  based on its .

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Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Newer manufacturing process 45 nms vs 65 nms A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly more l2 cache 6 MB vs 4 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Higher clock speed 3 GHz vs 2.4 GHz More than 25% higher clock speed
Much more l2 cache per core 3 MB/core vs 2 MB/core 50% more l2 cache per core
Much higher Maximum Operating Temperature 72.4 °C vs 60.1 °C More than 20% higher Maximum Operating Temperature
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Marginally newer Jan, 2008 vs Jul, 2006 Release date over 1 years later
Slightly better performance per watt 5.88 pt/W vs 4.08 pt/W Around 45% better performance per watt
Front view of Intel Core2 Duo E6600

Reasons to consider the
Intel Core2 Duo E6600

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CPUBoss is not aware of any important advantages of the E6600 vs the E8400.

Benchmarks Real world tests of Core2 Duo E8400 vs E6600

GeekBench

3D Mark 11 (Physics)

Core2 Duo E8400 Core2 Duo E6600 @ community.futuremark.com

Reviews Word on the street

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
E6600 
Clock speed 3 GHz 2.4 GHz
Cores Dual core Dual core
Socket type
LGA 775
Is hyperthreaded No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has vitualization support Yes Yes
Instruction-set-extensions
MMX
SSE
SSE3
SSE2
Supplemental SSE3
SSE4.1
Supports dynamic frequency scaling Yes Yes

gpu

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

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 1,066 MHz

details

Core2 Duo E8400  vs
E6600 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 4 MB
L2 cache per core 3 MB/core 2 MB/core
Manufacture process 45 nms 65 nms
Transistor count 410,000,000 291,000,000
Max CPUs 1 1
Clock multiplier 9 9
Voltage range 0.85 - 1.36V 0.85 - 1.5V
Operating temperature Unknown - 72.4°C Unknown - 60.1°C

overclocking

Overclock popularity 125 47
Overclock review score 4.5 5

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 5.88 pt/W 4.08 pt/W
Typical power consumption 52.81W 52.81W
Intel Core2 Duo E8400
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Intel Core2 Duo E6600
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