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Intel Xeon W3520

Front view of Intel Xeon W3520
Front view of AMD Opteron 4174 HE

AMD Opteron 4174 HE

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Differences What are the advantages of each

Front view of Intel Xeon W3520

Reasons to consider the
Intel Xeon W3520

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Much higher clock speed 2.66 GHz vs 2.3 GHz More than 15% higher clock speed
Much better overclocked clock speed (Air) 4.38 GHz vs 2.3 GHz More than 90% better overclocked clock speed (Air)
More l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Water) 4.46 GHz vs 2.3 GHz Around 95% better overclocked clock speed (Water)
More threads 8 vs 6 2 more threads
Much more l3 cache per core 2 MB/core vs 1 MB/core 2x more l3 cache per core
Front view of AMD Opteron 4174 HE

Reasons to consider the
AMD Opteron 4174 HE

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Much more l2 cache 3 MB vs 1 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 6 vs 4 2 more cores; run more applications at once
Much lower typical power consumption 52.81W vs 105.63W 2x lower typical power consumption
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower annual commercial energy cost 56.94 $/year vs 113.88 $/year 2x lower annual commercial energy cost
Much lower annual home energy cost 15.66 $/year vs 31.32 $/year 2x lower annual home energy cost
Newer Jun, 2010 vs Mar, 2009 Release date over 1 years later

Features Key features of the Xeon W3520  vs Opteron 4174 HE 

clock speed

Xeon W3520
2.66 GHz
Opteron 4174 HE
2.3 GHz

L2 cache

Xeon W3520
1 MB
Opteron 4174 HE
3 MB

L3 cache

Xeon W3520
8 MB
Opteron 4174 HE
6 MB

overclocked clock speed (air)

Xeon W3520
4.38 GHz
Opteron 4174 HE
2.3 GHz

overclocked clock speed (water)

Xeon W3520
4.46 GHz
Opteron 4174 HE
2.3 GHz

TDP

Xeon W3520
130W
Opteron 4174 HE
65W

Specifications Full list of technical specs

summary

 Xeon W3520  vs
Opteron 4174 HE 
Clock speed 2.66 GHz 2.3 GHz
Cores Quad 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

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 W3520  vs
Opteron 4174 HE 
Threads 8 6
L2 cache 1 MB 3 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 2
Clock multiplier 20 11
Voltage range 0.8 - 1.38V 1.19 - UnknownV
Operating temperature Unknown - 67.9°C 0 - 55°C

overclocking
Overclocked clock speed 4.38 GHz 2.3 GHz
Overclocked clock speed (Water) 4.46 GHz 2.3 GHz
Overclocked clock speed (Air) 4.38 GHz 2.3 GHz

power consumption
TDP 130W 65W
Annual home energy cost 31.32 $/year 15.66 $/year
Annual commercial energy cost 113.88 $/year 56.94 $/year
Typical power consumption 105.63W 52.81W

bus
Architecture QPI HyperTransport 3.0
Clock speed 2,400 MHz 2,200 MHz
Intel Xeon W3520
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AMD Opteron 4174 HE
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