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Intel Xeon E5620

Front view of Intel Xeon E5620
Front view of AMD Opteron 4376 HE

AMD Opteron 4376 HE

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Differences What are the advantages of each

Front view of Intel Xeon E5620

Reasons to consider the
Intel Xeon E5620

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Much more l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Air) 3.75 GHz vs 2.6 GHz Around 45% better overclocked clock speed (Air)
Much more l3 cache per core 3 MB/core vs 1 MB/core 3x more l3 cache per core
Much better overclocked clock speed (Water) 4.33 GHz vs 2.6 GHz More than 65% better overclocked clock speed (Water)
Front view of AMD Opteron 4376 HE

Reasons to consider the
AMD Opteron 4376 HE

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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 turbo clock speed 3.6 GHz vs 2.66 GHz More than 35% higher turbo clock speed
Significantly higher clock speed 2.6 GHz vs 2.4 GHz Around 10% higher clock speed
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
Lower typical power consumption 52.81W vs 65W Around 20% lower typical power consumption
Newer Dec, 2012 vs Mar, 2010 Release date over 2 years later
Lower annual commercial energy cost 56.94 $/year vs 70.08 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 15.66 $/year vs 19.27 $/year Around 20% lower annual home energy cost

Features Key features of the Xeon E5620  vs Opteron 4376 HE 

clock speed

Xeon E5620
2.4 GHz
Opteron 4376 HE
2.6 GHz

turbo clock speed

Xeon E5620
2.66 GHz
Opteron 4376 HE
3.6 GHz

L2 cache

Xeon E5620
1 MB
Opteron 4376 HE
8 MB

L3 cache

Xeon E5620
12 MB
Opteron 4376 HE
8 MB

overclocked clock speed (air)

Xeon E5620
3.75 GHz
Opteron 4376 HE
2.6 GHz

overclocked clock speed (water)

Xeon E5620
4.33 GHz
Opteron 4376 HE
2.6 GHz

Specifications Full list of technical specs

summary

 Xeon E5620  vs
Opteron 4376 HE 
Clock speed 2.4 GHz 2.6 GHz
Turbo clock speed 2.66 GHz 3.6 GHz
Cores Quad core Octa core
Socket type
LGA 1366
C32

features
Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 80W 65W
Annual home energy cost 19.27 $/year 15.66 $/year
Annual commercial energy cost 70.08 $/year 56.94 $/year
Typical power consumption 65W 52.81W

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,599.99 MB/s 12,800 MB/s

details

 Xeon E5620  vs
Opteron 4376 HE 
Threads 8 8
L2 cache 1 MB 8 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 12 MB 8 MB
L3 cache per core 3 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 2
Clock multiplier 18 13
Operating temperature Unknown - 77.6°C Unknown - 68°C

overclocking
Overclocked clock speed 3.75 GHz 2.6 GHz
Overclocked clock speed (Water) 4.33 GHz 2.6 GHz
Overclocked clock speed (Air) 3.75 GHz 2.6 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
Transfer rate 5,860 MT/s 6,400 MT/s
Clock speed 2,930 MHz 3,200 MHz
Intel Xeon E5620
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AMD Opteron 4376 HE
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