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Differences What are the advantages of each

Front view of Intel Xeon L7545

Reasons to consider the
Intel Xeon L7545

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
More threads 12 vs 2 10 more threads
More cores 6 vs 2 Three times as many cores; run more applications at once
Newer Mar, 2010 vs Oct, 2008 Release date over 1 years later
Front view of Intel Pentium T3400

Reasons to consider the
Intel Pentium T3400

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Much lower typical power consumption 28.44W vs 77.19W 2.7x lower typical power consumption
Higher clock speed 2.16 GHz vs 1.87 GHz More than 15% higher clock speed
Significantly better overclocked clock speed (Air) 2.73 GHz vs 1.87 GHz More than 45% better overclocked clock speed (Air)
More l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core
Much lower annual home energy cost 8.43 $/year vs 22.89 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 83.22 $/year 2.7x lower annual commercial energy cost
Better overclocked clock speed (Water) 2.17 GHz vs 1.87 GHz More than 15% better overclocked clock speed (Water)

Features Key features of the Xeon L7545  vs Pentium T3400 

clock speed

Xeon L7545
1.87 GHz
Pentium T3400
2.16 GHz

L2 cache

overclocked clock speed (air)

Xeon L7545
1.87 GHz
Pentium T3400
2.73 GHz

overclocked clock speed (water)

Xeon L7545
1.87 GHz
Pentium T3400
2.17 GHz

Specifications Full list of technical specs

summary

Xeon L7545  vs
Pentium T3400 
Clock speed 1.87 GHz 2.16 GHz
Cores Hexa core Dual core
Socket type
LGA 1567
478

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 35W
Annual home energy cost 22.89 $/year 8.43 $/year
Annual commercial energy cost 83.22 $/year 30.66 $/year
Typical power consumption 77.19W 28.44W

details

Xeon L7545  vs
Pentium T3400 
Threads 12 2
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 8 1
Voltage range 0.68 - 1.35V 1.07 - 1.18V

overclocking

Overclocked clock speed 1.87 GHz 2.73 GHz
Overclocked clock speed (Water) 1.87 GHz 2.17 GHz
Overclocked clock speed (Air) 1.87 GHz 2.73 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus

Architecture QPI FSB
Number of links 4 1
Clock speed 2,930 MHz 667 MHz
Intel Xeon L7545
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Intel Pentium T3400
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