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Differences What are the advantages of each

Front view of Intel Xeon E5 2680 v2

Reasons to consider the
Intel Xeon E5 2680 v2

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Much more l3 cache 25 MB vs 16 MB More than 55% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better performance per watt 12.44 pt/W vs 1.08 pt/W More than 11.5x better performance per watt
Much higher Maximum operating temperature 82 °C vs 70.4 °C More than 15% higher Maximum operating temperature
More threads 20 vs 12 8 more threads
Higher turbo clock speed 3.6 GHz vs 3.4 GHz More than 5% higher turbo clock speed
Much more l3 cache per core 2.5 MB/core vs 1.33 MB/core Around 90% more l3 cache per core
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Better overclocked clock speed (Water) 3.49 GHz vs 3.4 GHz Around 5% better overclocked clock speed (Water)
Newer Jul, 2013 vs Nov, 2012 Release date 7 months later
Front view of AMD Opteron 6348

Reasons to consider the
AMD Opteron 6348

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Much more l2 cache 12 MB vs 2.5 MB More than 4.8x more l2 cache; more data can be stored in the l2 cache for quick access later
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

Benchmarks Real world tests of Xeon E5 2680 v2 vs Opteron 6348

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5 2680 v2
2,170,000 MB/s
Opteron 6348
1,670 MB/s

Specifications Full list of technical specs

summary

Xeon E5 2680 v2  vs
Opteron 6348 
Clock speed 2.8 GHz 2.8 GHz
Turbo clock speed 3.6 GHz 3.4 GHz
Cores Deca core Duodeca 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
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 115W 115W
Annual home energy cost 27.7 $/year 27.7 $/year
Annual commercial energy cost 100.74 $/year 100.74 $/year
Performance per watt 12.44 pt/W 1.08 pt/W
Typical power consumption 93.44W 93.44W

bus

Architecture QPI HyperTransport 3.0
Transfer rate 8,000 MT/s 6,400 MT/s
Clock speed 4,000 MHz 3,200 MHz

details

Xeon E5 2680 v2  vs
Opteron 6348 
Threads 20 12
L2 cache 2.5 MB 12 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 25 MB 16 MB
L3 cache per core 2.5 MB/core 1.33 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 2 4
Clock multiplier 28 17
Operating temperature Unknown - 82°C Unknown - 70.4°C

overclocking

Overclocked clock speed 3.4 GHz 3.4 GHz
Overclocked clock speed (Water) 3.49 GHz 3.4 GHz
Overclocked clock speed (Air) 3.4 GHz 3.4 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Quad Channel Quad Channel
Supports ECC Yes Yes
Maximum bandwidth 59,733.32 MB/s 25,600 MB/s
Intel Xeon E5 2680 v2
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AMD Opteron 6348
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