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Differences What are the advantages of each

Front view of Intel Xeon X5675

Reasons to consider the
Intel Xeon X5675

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Much higher clock speed 3.06 GHz vs 2.6 GHz Around 20% higher clock speed
Much more l3 cache 12 MB vs 6 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Air) 4.29 GHz vs 2.6 GHz Around 65% better overclocked clock speed (Air)
Much higher Maximum operating temperature 81.3 °C vs 55 °C Around 50% higher Maximum operating temperature
More threads 12 vs 6 Twice as many threads
Much better overclocked clock speed (Water) 4.77 GHz vs 2.6 GHz Around 85% better overclocked clock speed (Water)
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l3 cache per core 2 MB/core vs 1 MB/core 2x more l3 cache per core
Newer Feb, 2011 vs Jun, 2010 Release date 7 months later
Front view of AMD Opteron 4180

Reasons to consider the
AMD Opteron 4180

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Much more l2 cache 3 MB vs 2 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly more l2 cache per core 0.5 MB/core vs 0.33 MB/core More than 50% more l2 cache per core

Features Key features of the Xeon X5675  vs Opteron 4180 

clock speed

Xeon X5675
3.06 GHz
Opteron 4180
2.6 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon X5675
4.29 GHz
Opteron 4180
2.6 GHz

overclocked clock speed (water)

Xeon X5675
4.77 GHz
Opteron 4180
2.6 GHz

TDP

Specifications Full list of technical specs

summary

Xeon X5675  vs
Opteron 4180 
Clock speed 3.06 GHz 2.6 GHz
Cores Hexa core Hexa core
Socket type
LGA 1366
C32

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES

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

details

Xeon X5675  vs
Opteron 4180 
Threads 12 6
L2 cache 2 MB 3 MB
L2 cache per core 0.33 MB/core 0.5 MB/core
L3 cache 12 MB 6 MB
L3 cache per core 2 MB/core 1 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 2
Clock multiplier 23 13
Voltage range 0.75 - 1.35V 1.3 - UnknownV
Operating temperature Unknown - 81.3°C 0 - 55°C

overclocking

Overclocked clock speed 4.29 GHz 2.6 GHz
Overclocked clock speed (Water) 4.77 GHz 2.6 GHz
Overclocked clock speed (Air) 4.29 GHz 2.6 GHz

power consumption

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

bus

Architecture QPI HyperTransport 3.0
Clock speed 3,200 MHz 2,200 MHz
Intel Xeon X5675
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AMD Opteron 4180
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