CPUBoss Review Our evaluation of E5400 vs E4400 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

2.9

CPUBoss Score

Combination of all six facets

Winner
Intel Pentium E5400 

CPUBoss recommends the Intel Pentium E5400  based on its performance and single-core performance.

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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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Much higher clock speed 2.7 GHz vs 2 GHz More than 35% higher clock speed
Much better PassMark score 1,632 vs 1,161 More than 40% better PassMark score
Much better PassMark (Single core) score 1,091 vs 733 Around 50% better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 2,391 vs 1,798 Around 35% better geekbench 2 (32-bit) score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much higher Maximum operating temperature 74.1 °C vs 61.4 °C More than 20% higher Maximum operating temperature
Much better overclocked clock speed (Air) 3.75 GHz vs 3.16 GHz Around 20% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.49 GHz vs 3.53 GHz More than 25% better overclocked clock speed (Water)
Newer Jan, 2009 vs Apr, 2007 Release date over 1 years later
Front view of Intel Core2 Duo E4400

Reasons to consider the
Intel Core2 Duo E4400

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CPUBoss is not aware of any important advantages of the Core2 Duo E4400 vs the Pentium E5400.

Benchmarks Real world tests of Pentium E5400 vs Core2 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

Pentium E5400
114,800 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

Pentium E5400  vs
Core2 Duo E4400 
Clock speed 2.7 GHz 2 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 1.73 pt/W 1.25 pt/W
Typical power consumption 52.81W 52.81W

bus

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

details

Pentium E5400  vs
Core2 Duo E4400 
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 45 nm 65 nm
Transistor count 228,000,000 167,000,000
Max CPUs 1 1
Clock multiplier 13 10
Voltage range 0.85 - 1.36V 0.85 - 1.5V
Operating temperature Unknown - 74.1°C Unknown - 61.4°C

overclocking

Overclocked clock speed 3.75 GHz 3.16 GHz
Overclocked clock speed (Water) 4.49 GHz 3.53 GHz
Overclocked clock speed (Air) 3.75 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 Pentium E5400
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Intel Core2 Duo E4400
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