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Differences What are the advantages of each

Front view of Intel Xeon E5620

Reasons to consider the
Intel Xeon E5620

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Significantly higher clock speed 2.4 GHz vs 1.6 GHz Around 50% higher clock speed
Much better performance per dollar 2.18 pt/$ vs 0.34 pt/$ Around 6.5x better performance per dollar
Significantly more l3 cache 12 MB vs 3 MB 4x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Air) 3.75 GHz vs 1.6 GHz More than 2.2x better overclocked clock speed (Air)
Much more l3 cache per core 3 MB/core vs 1.5 MB/core 2x more l3 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
Better PassMark score 4,873 vs 2,162 More than 2.2x better PassMark score
Better performance per watt 7.59 pt/W vs 4.92 pt/W Around 55% better performance per watt
Better PassMark (Single core) score 1,059 vs 703 More than 50% better PassMark (Single core) score
Supports more RAM 294,912 MB vs 16,384 MB Supports 18x more RAM
Much better overclocked clock speed (Water) 4.33 GHz vs 1.6 GHz Around 2.8x better overclocked clock speed (Water)
Front view of Intel Core i3 3217UE

Reasons to consider the
Intel Core i3 3217UE

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 13.81W vs 65W 4.7x lower typical power consumption
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher Maximum operating temperature 105 °C vs 77.6 °C More than 35% higher Maximum operating temperature
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Newer Jul, 2012 vs Mar, 2010 Release date over 2 years later
Much lower annual home energy cost 4.1 $/year vs 19.27 $/year 4.7x lower annual home energy cost
Much lower annual commercial energy cost 14.89 $/year vs 70.08 $/year 4.7x lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5620 vs Core i3 3217UE

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5620  vs
Core i3 3217UE 
Clock speed 2.4 GHz 1.6 GHz
Cores Quad core Dual core
Socket type
LGA 1366
BGA 1023

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

power consumption

TDP 80W 17W
Annual home energy cost 19.27 $/year 4.1 $/year
Annual commercial energy cost 70.08 $/year 14.89 $/year
Performance per watt 7.59 pt/W 4.92 pt/W
Typical power consumption 65W 13.81W

bus

Architecture QPI DMI
Number of links 2 1
Transfer rate 5,860 MT/s 5,000 MT/s

details

Xeon E5620  vs
Core i3 3217UE 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 12 MB 3 MB
L3 cache per core 3 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 1
Clock multiplier 18 16
Operating temperature Unknown - 77.6°C Unknown - 105°C

overclocking

Overclocked clock speed 3.75 GHz 1.6 GHz
Overclocked clock speed (Water) 4.33 GHz 1.6 GHz
Overclocked clock speed (Air) 3.75 GHz 1.6 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4000
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 900 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 25,600 MB/s
Maximum memory size 294,912 MB 16,384 MB
Intel Xeon E5620
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Intel Core i3 3217UE
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