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Front view of Intel Celeron U3405

Intel Celeron U3405

CPUBoss Winner

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 higher clock speed 3 GHz vs 1.06 GHz More than 2.8x higher clock speed
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 1.07 GHz Around 4x better overclocked clock speed (Air)
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Water) 4.23 GHz vs 1.07 GHz Around 4x better overclocked clock speed (Water)
Better PassMark score 2,160 vs 684 Around 3.2x better PassMark score
Front view of Intel Celeron U3405

Reasons to consider the
Intel Celeron U3405

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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 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 14.63W vs 52.81W 3.6x lower typical power consumption
Better performance per dollar 0.26 pt/$ vs 0.01 pt/$ More than 21.8x better performance per dollar
Newer Aug, 2010 vs Jan, 2008 Release date over 2 years later
Much lower annual home energy cost 4.34 $/year vs 15.66 $/year 3.6x lower annual home energy cost
Much lower annual commercial energy cost 15.77 $/year vs 56.94 $/year 3.6x lower annual commercial energy cost

Benchmarks Real world tests of Core2 Duo E8400 vs Celeron U3405

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Celeron U3405 
Clock speed 3 GHz 1.06 GHz
Cores Dual core Dual core
Socket type
LGA 775
BGA 1288

features

Has a NX bit Yes Yes
Supports trusted computing Yes 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 18W
Annual home energy cost 15.66 $/year 4.34 $/year
Annual commercial energy cost 56.94 $/year 15.77 $/year
Performance per watt 1.83 pt/W 1.55 pt/W
Typical power consumption 52.81W 14.63W

details

Core2 Duo E8400  vs
Celeron U3405 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 32 nm
Transistor count 410,000,000 382,000,000
Max CPUs 1 1
Clock multiplier 9 14

overclocking

Overclocked clock speed 4.22 GHz 1.07 GHz
Overclocked clock speed (Water) 4.23 GHz 1.07 GHz
Overclocked clock speed (Air) 4.22 GHz 1.07 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 166 MHz
Turbo clock speed N/A 500 MHz

bus

Architecture FSB DMI
Number of links 1 1
Intel Core2 Duo E8400
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Intel Celeron U3405
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