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Differences What are the advantages of each

Front view of Intel Pentium G860

Reasons to consider the
Intel Pentium G860

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Significantly higher clock speed 3 GHz vs 1.8 GHz More than 65% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 52.81W vs 69.06W Around 25% lower typical power consumption
Much better overclocked clock speed (Air) 3.18 GHz vs 1.8 GHz More than 75% better overclocked clock speed (Air)
Higher Maximum operating temperature 69.1 °C vs 55 °C More than 25% higher Maximum operating temperature
More l3 cache per core 1.5 MB/core vs 1 MB/core 50% more l3 cache per core
Much better overclocked clock speed (Water) 3.15 GHz vs 1.8 GHz Around 75% better overclocked clock speed (Water)
Lower annual home energy cost 15.66 $/year vs 20.48 $/year Around 25% lower annual home energy cost
Lower annual commercial energy cost 56.94 $/year vs 74.46 $/year Around 25% lower annual commercial energy cost
Newer Jul, 2011 vs Feb, 2011 Release date 4 months later
Front view of AMD Opteron 6166 HE

Reasons to consider the
AMD Opteron 6166 HE

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
Significantly more l3 cache 12 MB vs 3 MB 4x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 12 vs 2 10 more cores; run more applications at once
More threads 12 vs 2 10 more threads

Features Key features of the Pentium G860  vs Opteron 6166 HE 

clock speed

L2 cache

L3 cache

overclocked clock speed (air)

Pentium G860
3.18 GHz
Opteron 6166 HE
1.8 GHz

overclocked clock speed (water)

Pentium G860
3.15 GHz
Opteron 6166 HE
1.8 GHz

Specifications Full list of technical specs

summary

Pentium G860  vs
Opteron 6166 HE 
Clock speed 3 GHz 1.8 GHz
Cores Dual core Duodeca core
Socket type
LGA 1155
G34

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

power consumption

TDP 65W 85W
Annual home energy cost 15.66 $/year 20.48 $/year
Annual commercial energy cost 56.94 $/year 74.46 $/year
Typical power consumption 52.81W 69.06W

memory controller

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

details

Pentium G860  vs
Opteron 6166 HE 
Threads 2 12
L2 cache 1 MB 6 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 3 MB 12 MB
L3 cache per core 1.5 MB/core 1 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 4
Clock multiplier 30 9
Operating temperature Unknown - 69.1°C Unknown - 55°C

overclocking

Overclocked clock speed 3.18 GHz 1.8 GHz
Overclocked clock speed (Water) 3.15 GHz 1.8 GHz
Overclocked clock speed (Air) 3.18 GHz 1.8 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A

bus

Architecture DMI HyperTransport 3.0
Intel Pentium G860
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AMD Opteron 6166 HE
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