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Differences What are the advantages of each

Front view of Intel Xeon 3400 L3403

Reasons to consider the
Intel Xeon 3400 L3403

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Much lower typical power consumption 24.38W vs 62.56W 2.6x lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Much lower annual home energy cost 7.23 $/year vs 18.55 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 26.28 $/year vs 67.45 $/year 2.6x lower annual commercial energy cost
Front view of Intel Core i5 3450

Reasons to consider the
Intel Core i5 3450

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Significantly higher clock speed 3.1 GHz vs 2 GHz More than 55% higher clock speed
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 3.69 GHz vs 2 GHz Around 85% better overclocked clock speed (Air)
Slightly more l3 cache 6 MB vs 4 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
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, 2012 vs May, 2010 Release date over 1 years later
Much better overclocked clock speed (Water) 3.96 GHz vs 2 GHz Around 2x better overclocked clock speed (Water)

Features Key features of the Xeon 3400 L3403  vs Core i5 3450 

clock speed

L2 cache

L3 cache

overclocked clock speed (air)

Core i5 3450
3.69 GHz

overclocked clock speed (water)

Core i5 3450
3.96 GHz

Specifications Full list of technical specs

summary

Xeon 3400 L3403  vs
Core i5 3450 
Clock speed 2 GHz 3.1 GHz
Cores Dual core Quad core
Socket type
LGA 1156
LGA 1155

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
Supports dynamic frequency scaling Yes Yes

bus

Architecture DMI DMI 2.0
Transfer rate 2,500 MT/s 5,000 MT/s

details

Xeon 3400 L3403  vs
Core i5 3450 
Threads 2 4
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 4 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2 GHz 3.69 GHz
Overclocked clock speed (Water) 2 GHz 3.96 GHz
Overclocked clock speed (Air) 2 GHz 3.69 GHz

power consumption

TDP 30W 77W
Annual home energy cost 7.23 $/year 18.55 $/year
Annual commercial energy cost 26.28 $/year 67.45 $/year
Typical power consumption 24.38W 62.56W
Intel Xeon 3400 L3403
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Intel Core i5 3450
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