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Differences What are the advantages of each

Front view of Intel Xeon E5 2603 v2

Reasons to consider the
Intel Xeon E5 2603 v2

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Significantly lower typical power consumption 65W vs 93.44W More than 30% lower typical power consumption
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Significantly lower annual commercial energy cost 70.08 $/year vs 100.74 $/year More than 30% lower annual commercial energy cost
Significantly lower annual home energy cost 19.27 $/year vs 27.7 $/year More than 30% lower annual home energy cost
Newer Jul, 2013 vs Nov, 2011 Release date over 1 years later
Front view of AMD Opteron 6220

Reasons to consider the
AMD Opteron 6220

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Much more l2 cache 8 MB vs 1 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3 GHz vs 1.8 GHz More than 65% higher clock speed
Much higher turbo clock speed 3.6 GHz vs 1.8 GHz 2x higher turbo clock speed
Much more l3 cache 16 MB vs 10 MB 60% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Air) 3.96 GHz vs 1.83 GHz Around 2.2x better overclocked clock speed (Air)
More cores 8 vs 4 Twice as many cores; run more applications at once
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Water) 3 GHz vs 1.8 GHz More than 65% better overclocked clock speed (Water)
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration

Features Key features of the Xeon E5 2603 v2  vs Opteron 6220 

clock speed

turbo clock speed

Xeon E5 2603 v2
1.8 GHz
Opteron 6220
3.6 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5 2603 v2
1.83 GHz
Opteron 6220
3.96 GHz

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Xeon E5 2603 v2  vs
Opteron 6220 
Clock speed 1.8 GHz 3 GHz
Turbo clock speed 1.8 GHz 3.6 GHz
Cores Quad core Octa core
Socket type
LGA 2011
G34
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES

power consumption

TDP 80W 115W
Annual home energy cost 19.27 $/year 27.7 $/year
Annual commercial energy cost 70.08 $/year 100.74 $/year
Typical power consumption 65W 93.44W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3

details

Xeon E5 2603 v2  vs
Opteron 6220 
Threads 4 8
L2 cache 1 MB 8 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 10 MB 16 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 2 4
Clock multiplier 18 18
Operating temperature Unknown - 71°C Unknown - 71.7°C

overclocking

Overclocked clock speed 1.83 GHz 3.96 GHz
Overclocked clock speed (Water) 1.8 GHz 3 GHz
Overclocked clock speed (Air) 1.83 GHz 3.96 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

bus

Architecture QPI HyperTransport 3.0
Number of links 2 4
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz
Intel Xeon E5 2603 v2
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AMD Opteron 6220
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