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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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Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost
Front view of Intel Xeon E5-2470 v2

Reasons to consider the
Intel Xeon E5-2470 v2

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Much more l3 cache 25 MB vs 12 MB More than 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l2 cache 2.5 MB vs 1 MB 2.5x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher turbo clock speed 3.2 GHz vs 2.66 GHz More than 20% higher turbo clock speed
More threads 20 vs 8 12 more threads
More cores 10 vs 4 6 more cores; run more applications at once
Much higher Maximum operating temperature 80 °C vs 77.6 °C Around 5% higher Maximum operating temperature
Supports more RAM 393,216 MB vs 294,912 MB Supports around 35% more RAM
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jan, 2014 vs Mar, 2010 Release date over 3 years later

Features Key features of the Xeon E5620  vs E5-2470 v2 

clock speed

Xeon E5620
2.4 GHz
Xeon E5-2470 v2
2.4 GHz

turbo clock speed

Xeon E5620
2.66 GHz
Xeon E5-2470 v2
3.2 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E5620  vs
E5-2470 v2 
Clock speed 2.4 GHz 2.4 GHz
Turbo clock speed 2.66 GHz 3.2 GHz
Cores Quad core Deca core
Socket type
LGA 1366
LGA 1356

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
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 95W
Annual home energy cost 19.27 $/year 22.89 $/year
Annual commercial energy cost 70.08 $/year 83.22 $/year
Typical power consumption 65W 77.19W

bus

Architecture QPI QPI
Number of links 2 1
Data rate 46,928 MB/s 32,000 MB/s
Transfer rate 5,860 MT/s 8,000 MT/s
Clock speed 2,930 MHz 4,000 MHz

details

Xeon E5620  vs
E5-2470 v2 
Architecture x86-64 x86-64
Threads 8 20
L2 cache 1 MB 2.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 12 MB 25 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 2
Clock multiplier 18 24
Voltage range 0.75 - 1.35V 0.65 - 1.3V
Operating temperature Unknown - 77.6°C Unknown - 80°C

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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 38,400 MB/s
Maximum memory size 294,912 MB 393,216 MB
Intel Xeon E5620
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Intel Xeon E5-2470 v2
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