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Differences What are the advantages of each

Front view of Intel Xeon E5-2660

Reasons to consider the
Intel Xeon E5-2660

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Much more l3 cache 20 MB vs 16 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 16 vs 8 Twice as many threads
Lower typical power consumption 77.19W vs 93.44W More than 15% lower typical power consumption
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Better overclocked clock speed (Water) 3.17 GHz vs 3 GHz More than 5% better overclocked clock speed (Water)
Lower annual commercial energy cost 83.22 $/year vs 100.74 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 22.89 $/year vs 27.7 $/year More than 15% lower annual home energy cost
Front view of AMD Opteron 6220

Reasons to consider the
AMD Opteron 6220

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3 GHz vs 2.2 GHz More than 35% higher clock speed
Significantly higher turbo clock speed 3.6 GHz vs 3 GHz More than 20% higher turbo clock speed
Much better overclocked clock speed (Air) 3.96 GHz vs 2.65 GHz Around 50% better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration

Features Key features of the Xeon E5-2660  vs Opteron 6220 

clock speed

Xeon E5-2660
2.2 GHz
Opteron 6220
3 GHz

turbo clock speed

Xeon E5-2660
3 GHz
Opteron 6220
3.6 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5-2660
2.65 GHz
Opteron 6220
3.96 GHz

overclocked clock speed (water)

Xeon E5-2660
3.17 GHz
Opteron 6220
3 GHz

Specifications Full list of technical specs

summary

Xeon E5-2660  vs
Opteron 6220 
Clock speed 2.2 GHz 3 GHz
Turbo clock speed 3 GHz 3.6 GHz
Cores Octa core Octa core
Socket type
LGA 2011
G34

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 95W 115W
Annual home energy cost 22.89 $/year 27.7 $/year
Annual commercial energy cost 83.22 $/year 100.74 $/year
Typical power consumption 77.19W 93.44W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800

details

Xeon E5-2660  vs
Opteron 6220 
Threads 16 8
L2 cache 2 MB 8 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 20 MB 16 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 4
Clock multiplier 30 18
Operating temperature Unknown - 73°C Unknown - 71.7°C

overclocking

Overclock popularity 1 0
Overclocked clock speed 2.65 GHz 3.96 GHz
Overclocked clock speed (Water) 3.17 GHz 3 GHz
Overclocked clock speed (Air) 2.65 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 8,000 MT/s 6,400 MT/s
Clock speed 4,000 MHz 3,200 MHz
Intel Xeon E5-2660
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AMD Opteron 6220
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