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Differences What are the advantages of each

Front view of Intel Xeon E5-4603 v2

Reasons to consider the
Intel Xeon E5-4603 v2

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More threads 8 vs 4 Twice as many threads
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Newer Jan, 2014 vs Jul, 2013 Release date 6 months later
Front view of Intel Xeon E5 2609 v2

Reasons to consider the
Intel Xeon E5 2609 v2

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Much higher clock speed 2.5 GHz vs 2.2 GHz Around 15% higher clock speed
Higher turbo clock speed 2.5 GHz vs 2.2 GHz Around 15% higher turbo clock speed
Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
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

Features Key features of the Xeon E5-4603 v2  vs E5 2609 v2 

clock speed

turbo clock speed

Specifications Full list of technical specs

summary

Xeon E5-4603 v2  vs
E5 2609 v2 
Clock speed 2.2 GHz 2.5 GHz
Turbo clock speed 2.2 GHz 2.5 GHz
Cores Quad core Quad core

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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 42,666.64 MB/s 25,600 MB/s
Maximum memory size 786,432 MB 786,432 MB

details

Xeon E5-4603 v2  vs
E5 2609 v2 
Architecture x86-64 x86-64
Threads 8 4
L3 cache 10 MB 10 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 4 2
Operating temperature Unknown - 77°C Unknown - 71°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

power consumption

TDP 95W 80W
Annual home energy cost 22.89 $/year 19.27 $/year
Annual commercial energy cost 83.22 $/year 70.08 $/year
Typical power consumption 77.19W 65W

bus

Architecture QPI QPI
Number of links 2 2
Data rate 51,200 MB/s 51,200 MB/s
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz
Intel Xeon E5-4603 v2
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Intel Xeon E5 2609 v2
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