CPUBoss Review Our evaluation of E5400 vs E7400 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

3

CPUBoss Score

Combination of all six facets

Winner
Intel Pentium E5400 

CPUBoss recommends the Intel Pentium E5400  based on its .

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VS

Differences What are the advantages of each

Front view of Intel Pentium E5400

Reasons to consider the
Intel Pentium E5400

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Newer Jan, 2009 vs Jan, 2008 Release date a year later
Front view of Intel Core2 Duo E7400

Reasons to consider the
Intel Core2 Duo E7400

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Higher clock speed 2.8 GHz vs 2.7 GHz Around 5% higher clock speed
Better overclocked clock speed (Air) 3.91 GHz vs 3.75 GHz Around 5% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.58 GHz vs 4.49 GHz Almost the same

Benchmarks Real world tests of Pentium E5400 vs Core2 Duo E7400

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

Pentium E5400
114,800 MB/s
Core2 Duo E7400
119,000 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

Pentium E5400  vs
Core2 Duo E7400 
Clock speed 2.7 GHz 2.8 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 Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
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 1.73 pt/W 1.52 pt/W
Typical power consumption 52.81W 52.81W

bus

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

details

Pentium E5400  vs
Core2 Duo E7400 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 3 MB
L2 cache per core 1 MB/core 1.5 MB/core
Manufacture process 45 nm 45 nm
Transistor count 228,000,000 228,000,000
Max CPUs 1 1
Clock multiplier 13 10
Voltage range 0.85 - 1.36V 0.85 - 1.36V
Operating temperature Unknown - 74.1°C Unknown - 74.1°C

overclocking

Overclocked clock speed 3.75 GHz 3.91 GHz
Overclocked clock speed (Water) 4.49 GHz 4.58 GHz
Overclocked clock speed (Air) 3.75 GHz 3.91 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 Pentium E5400
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Intel Core2 Duo E7400
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