CPUBoss Review Our evaluation of E8400 vs 4440 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

7

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E8400 

CPUBoss recommends the Intel Core2 Duo E8400  based on its .

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Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 0.25 MB/core 12x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 3.28 GHz Around 30% better overclocked clock speed (Air)
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly lower typical power consumption 52.81W vs 68.25W Around 25% lower typical power consumption
Much better overclocked clock speed (Water) 4.23 GHz vs 3.36 GHz More than 25% better overclocked clock speed (Water)
Significantly lower annual home energy cost 15.66 $/year vs 20.24 $/year Around 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 73.58 $/year Around 25% lower annual commercial energy cost
Front view of Intel Core i5 4440

Reasons to consider the
Intel Core i5 4440

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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
Higher clock speed 3.1 GHz vs 3 GHz Around 5% higher clock speed
Newer Jul, 2013 vs Jan, 2008 Release date over 5 years later

Benchmarks Real world tests of Core2 Duo E8400 vs Core i5 4440

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core2 Duo E8400
2.41 mHash/s
Core i5 4440
13.95 mHash/s

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 E8400
128,000 MB/s
Core i5 4440
4,110,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Core i5 4440 
Clock speed 3 GHz 3.1 GHz
Cores Dual core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing Yes 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 84W
Annual home energy cost 15.66 $/year 20.24 $/year
Annual commercial energy cost 56.94 $/year 73.58 $/year
Performance per watt 1.83 pt/W 9.64 pt/W
Typical power consumption 52.81W 68.25W

details

Core2 Duo E8400  vs
Core i5 4440 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.25 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 72.4°C Unknown - 72.72°C

overclocking

Overclocked clock speed 4.22 GHz 3.28 GHz
Overclocked clock speed (Water) 4.23 GHz 3.36 GHz
Overclocked clock speed (Air) 4.22 GHz 3.28 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 E8400
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Intel Core i5 4440
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