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Intel Xeon E5440

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Front view of Intel Xeon E5440

Differences What are the advantages of each

Front view of Intel Xeon E5440

Reasons to consider the
Intel Xeon E5440

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Much more l2 cache 12 MB vs 1 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 2.83 GHz vs 1.06 GHz Around 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) 3.61 GHz vs 1.07 GHz Around 3.5x better overclocked clock speed (Air)
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Better PassMark score 4,000 vs 684 More than 5.8x better PassMark score
More cores 4 vs 2 Twice as many cores; run more applications at once
Much better overclocked clock speed (Water) 3.96 GHz vs 1.07 GHz Around 3.8x better overclocked clock speed (Water)
More threads 4 vs 2 Twice as many threads
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 65W 4.4x lower typical power consumption
Newer Aug, 2010 vs Nov, 2007 Release date over 2 years later
Much lower annual home energy cost 4.34 $/year vs 19.27 $/year 4.4x lower annual home energy cost
Much lower annual commercial energy cost 15.77 $/year vs 70.08 $/year 4.4x lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5440 vs Celeron U3405

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Xeon E5440  vs
Celeron U3405 
Clock speed 2.83 GHz 1.06 GHz
Cores Quad core Dual core
Socket type
LGA 771
BGA 1288

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 80W 18W
Annual home energy cost 19.27 $/year 4.34 $/year
Annual commercial energy cost 70.08 $/year 15.77 $/year
Performance per watt 2 pt/W 1.55 pt/W
Typical power consumption 65W 14.63W

details

Xeon E5440  vs
Celeron U3405 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 12 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 32 nm
Transistor count 820,000,000 382,000,000
Max CPUs 2 1
Clock multiplier 8 14

overclocking

Overclocked clock speed 3.61 GHz 1.07 GHz
Overclocked clock speed (Water) 3.96 GHz 1.07 GHz
Overclocked clock speed (Air) 3.61 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 Xeon E5440
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Intel Celeron U3405
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