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Differences What are the advantages of each

Front view of Intel Xeon E5450

Reasons to consider the
Intel Xeon E5450

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More cores 4 vs 2 Twice as many cores; run more applications at once
Much lower typical power consumption 65W vs 121.88W More than 45% lower typical power consumption
Newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 3.83 GHz vs 3.4 GHz Around 15% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.1 GHz vs 3.4 GHz More than 20% better overclocked clock speed (Water)
Much lower annual commercial energy cost 70.08 $/year vs 131.4 $/year More than 45% lower annual commercial energy cost
Much lower annual home energy cost 19.27 $/year vs 36.13 $/year More than 45% lower annual home energy cost
Newer Nov, 2007 vs Aug, 2006 Release date over 1 years later
Front view of Intel Xeon 7140M

Reasons to consider the
Intel Xeon 7140M

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Much more l2 cache 16 MB vs 12 MB Around 35% more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 8 MB/core vs 3 MB/core Around 2.8x more l2 cache per core
Much higher clock speed 3.4 GHz vs 3 GHz Around 15% higher clock speed
Supports more CPUs in SMP configuration 32 vs 2 30 supports more CPUs in SMP configuration

Features Key features of the Xeon E5450  vs 7140M 

clock speed

Xeon E5450
3 GHz
Xeon 7140M
3.4 GHz

L2 cache

Xeon E5450
12 MB
Xeon 7140M
16 MB

overclocked clock speed (air)

Xeon E5450
3.83 GHz
Xeon 7140M
3.4 GHz

overclocked clock speed (water)

Xeon E5450
4.1 GHz
Xeon 7140M
3.4 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5450  vs
7140M 
Clock speed 3 GHz 3.4 GHz
Cores Quad core Dual core
Socket type
LGA 771
604

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
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 150W
Annual home energy cost 19.27 $/year 36.13 $/year
Annual commercial energy cost 70.08 $/year 131.4 $/year
Typical power consumption 65W 121.88W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 800 MHz

details

Xeon E5450  vs
7140M 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 12 MB 16 MB
L2 cache per core 3 MB/core 8 MB/core
Manufacture process 45 nm 65 nm
Transistor count 820,000,000 1,328,000,000
Max CPUs 2 32
Clock multiplier 9 17
Voltage range 0.85 - 1.35V 1.1 - 1.35V
Operating temperature Unknown - 67°C Unknown - 69°C

overclocking

Overclocked clock speed 3.83 GHz 3.4 GHz
Overclocked clock speed (Water) 4.1 GHz 3.4 GHz
Overclocked clock speed (Air) 3.83 GHz 3.4 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
Intel Xeon E5450
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Intel Xeon 7140M
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