CPUBoss Review Our evaluation of E6400 vs E4700 among desktop CPUs (45 to 75W)

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

2.8

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E4700 

CPUBoss recommends the Intel Core2 Duo E4700  based on its performance.

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VS

Differences What are the advantages of each

Front view of Intel Core2 Duo E6400

Reasons to consider the
Intel Core2 Duo E6400

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Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Front view of Intel Core2 Duo E4700

Reasons to consider the
Intel Core2 Duo E4700

Report a correction
Much better PassMark score 1,479 vs 1,295 Around 15% better PassMark score
Much better geekbench 2 (32-bit) score 2,268 vs 1,961 More than 15% better geekbench 2 (32-bit) score
Significantly higher clock speed 2.6 GHz vs 2.13 GHz More than 20% higher clock speed
Much higher Maximum operating temperature 73.3 °C vs 61.4 °C Around 20% higher Maximum operating temperature
Significantly better overclocked clock speed (Air) 3.54 GHz vs 3.33 GHz More than 5% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.06 GHz vs 3.33 GHz More than 20% better overclocked clock speed (Water)
Newer Jan, 2008 vs Jul, 2006 Release date over 1 years later

Benchmarks Real world tests of Core2 Duo E6400 vs E4700

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 Duo E6400
91,000 MB/s
Core2 Duo E4700
111,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E6400  vs
E4700 
Clock speed 2.13 GHz 2.6 GHz
Cores Dual 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 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 1.35 pt/W 1.62 pt/W
Typical power consumption 52.81W 52.81W

bus

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

details

Core2 Duo E6400  vs
E4700 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 65 nm 65 nm
Transistor count 167,000,000 167,000,000
Max CPUs 1 1
Clock multiplier 8 13
Voltage range 0.85 - 1.5V 0.85 - 1.5V
Operating temperature Unknown - 61.4°C Unknown - 73.3°C

overclocking

Overclocked clock speed 3.33 GHz 3.54 GHz
Overclocked clock speed (Water) 3.33 GHz 4.06 GHz
Overclocked clock speed (Air) 3.33 GHz 3.54 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 Duo E6400
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Intel Core2 Duo E4700
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