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Differences What are the advantages of each

Front view of Intel Xeon E5-2620

Reasons to consider the
Intel Xeon E5-2620

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Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache 2 MB vs 0.25 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
More cores 6 vs 1 5 more cores; run more applications at once
More threads 12 vs 1 11 more threads
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Higher Maximum operating temperature 77.4 °C vs 67.7 °C Around 15% higher Maximum operating temperature
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Front view of Intel Celeron 320

Reasons to consider the
Intel Celeron 320

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Higher clock speed 2.4 GHz vs 2 GHz Around 20% higher clock speed
Lower typical power consumption 68.25W vs 77.19W More than 10% lower typical power consumption
Lower annual home energy cost 20.24 $/year vs 22.89 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 73.58 $/year vs 83.22 $/year More than 10% lower annual commercial energy cost

Features Key features of the Xeon E5-2620  vs Celeron 320 

clock speed

Xeon E5-2620
2 GHz
Celeron 320
2.4 GHz

L2 cache

Celeron 320
0.25 MB

Specifications Full list of technical specs

summary

Xeon E5-2620  vs
Celeron 320 
Clock speed 2 GHz 2.4 GHz
Cores Hexa core Single core

features

Has a NX bit Yes Yes
Supports dynamic frequency scaling Yes No

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

details

Xeon E5-2620  vs
Celeron 320 
Threads 12 1
L2 cache 2 MB 0.25 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 2 1
Clock multiplier 25 18
Voltage range 0.6 - 1.35V 1.25 - 1.4V
Operating temperature Unknown - 77.4°C Unknown - 67.7°C

power consumption

TDP 95W 84W
Annual home energy cost 22.89 $/year 20.24 $/year
Annual commercial energy cost 83.22 $/year 73.58 $/year
Typical power consumption 77.19W 68.25W

bus

Architecture QPI FSB
Number of links 2 1
Clock speed 3,600 MHz 533 MHz
Intel Xeon E5-2620
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Intel Celeron 320
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