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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 more l2 cache 3 MB vs 1 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 1.5 MB/core vs 0.25 MB/core 6x more l2 cache per core
Much better overclocked clock speed (Air) 3.91 GHz vs 3.15 GHz Around 25% better overclocked clock speed (Air)
Higher clock speed 2.8 GHz vs 2.7 GHz Around 5% higher clock speed
Much better overclocked clock speed (Water) 4.58 GHz vs 2.7 GHz Around 70% better overclocked clock speed (Water)
Higher Maximum operating temperature 74.1 °C vs 71.35 °C Around 5% higher Maximum operating temperature
Front view of Intel Core i5 4430S

Reasons to consider the
Intel Core i5 4430S

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Newer Apr, 2013 vs Jan, 2008 Release date over 5 years later

Benchmarks Real world tests of Core2 Duo E7400 vs Core i5 4430S

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
Core i5 4430S
3,450,000 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 E7400  vs
Core i5 4430S 
Clock speed 2.8 GHz 2.7 GHz
Cores Dual core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
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 1.52 pt/W 12.84 pt/W
Typical power consumption 52.81W 52.81W

details

Core2 Duo E7400  vs
Core i5 4430S 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 3 MB 1 MB
L2 cache per core 1.5 MB/core 0.25 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 74.1°C Unknown - 71.35°C

overclocking

Overclocked clock speed 3.91 GHz 3.15 GHz
Overclocked clock speed (Water) 4.58 GHz 2.7 GHz
Overclocked clock speed (Air) 3.91 GHz 3.15 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4600
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,100 MHz

bus

Architecture FSB DMI 2.0
Number of links 1 0
Intel Core2 Duo E7400
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Intel Core i5 4430S
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