CPUBoss Review Our evaluation of E7400 vs 250e 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

3.8

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E7400 

CPUBoss recommends the Intel Core2 Duo E7400  based on its .

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Differences What are the advantages of each

Front view of Intel Core2 Duo E7400

Reasons to consider the
Intel Core2 Duo E7400

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Much better overclocked clock speed (Air) 3.91 GHz vs 3.6 GHz Around 10% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.58 GHz vs 3 GHz Around 55% better overclocked clock speed (Water)
Higher Maximum operating temperature 74.1 °C vs 72 °C Around 5% higher Maximum operating temperature
Front view of AMD Athlon II X2 250e

Reasons to consider the
AMD Athlon II X2 250e

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Higher clock speed 3 GHz vs 2.8 GHz More than 5% higher clock speed
Significantly lower typical power consumption 36.56W vs 52.81W More than 30% lower typical power consumption
Significantly lower annual home energy cost 10.84 $/year vs 15.66 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 39.42 $/year vs 56.94 $/year More than 30% lower annual commercial energy cost
Newer Sep, 2010 vs Jan, 2008 Release date over 2 years later

Benchmarks Real world tests of Core2 Duo E7400 vs Athlon II X2 250e

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 E7400
119,000 MB/s
Athlon II X2 250e
120.7 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E7400  vs
Athlon II X2 250e 
Clock speed 2.8 GHz 3 GHz
Cores Dual core Dual core
Socket type
LGA 775
AM3

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 45W
Annual home energy cost 15.66 $/year 10.84 $/year
Annual commercial energy cost 56.94 $/year 39.42 $/year
Performance per watt 1.52 pt/W 1.75 pt/W
Typical power consumption 52.81W 36.56W

details

Core2 Duo E7400  vs
Athlon II X2 250e 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 3 MB 2 MB
L2 cache per core 1.5 MB/core 1 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.36V 0.85 - 1.4V
Operating temperature Unknown - 74.1°C Unknown - 72°C

overclocking

Overclocked clock speed 3.91 GHz 3.6 GHz
Overclocked clock speed (Water) 4.58 GHz 3 GHz
Overclocked clock speed (Air) 3.91 GHz 3.6 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

bus

Clock speed 1,066 MHz 2,000 MHz
Intel Core2 Duo E7400
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AMD Athlon II X2 250e
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