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Differences What are the advantages of each

Front view of Intel Core i7 4702MQ

Reasons to consider the
Intel Core i7 4702MQ

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Much newer manufacturing process 22 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 30.06W vs 75.24W 2.5x lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 67 °C Around 50% higher Maximum operating temperature
Newer Apr, 2013 vs Apr, 2006 Release date over 7 years later
More threads 8 vs 1 7 more threads
More cores 4 vs 1 3 more cores; run more applications at once
Much lower annual home energy cost 8.91 $/year vs 22.31 $/year 2.5x lower annual home energy cost
Much lower annual commercial energy cost 32.41 $/year vs 81.12 $/year 2.5x lower annual commercial energy cost
Front view of AMD Opteron 856

Reasons to consider the
AMD Opteron 856

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Significantly higher clock speed 3 GHz vs 2.2 GHz More than 35% higher clock speed
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Better overclocked clock speed (Water) 3 GHz vs 2.2 GHz More than 35% better overclocked clock speed (Water)

Features Key features of the Core i7 4702MQ  vs Opteron 856 

clock speed

Core i7 4702MQ
2.2 GHz
Opteron 856
3 GHz

L2 cache

overclocked clock speed (air)

Core i7 4702MQ
3.08 GHz
Opteron 856
3.1 GHz

overclocked clock speed (water)

Core i7 4702MQ
2.2 GHz
Opteron 856
3 GHz

TDP

Specifications Full list of technical specs

summary

Core i7 4702MQ  vs
Opteron 856 
Clock speed 2.2 GHz 3 GHz
Cores Quad core Single core

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

details

Core i7 4702MQ  vs
Opteron 856 
Threads 8 1
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 22 nm 90 nm
Max CPUs 1 8
Operating temperature Unknown - 100°C 0 - 67°C

overclocking

Overclocked clock speed 3.08 GHz 3.1 GHz
Overclocked clock speed (Water) 2.2 GHz 3 GHz
Overclocked clock speed (Air) 3.08 GHz 3.1 GHz

power consumption

TDP 37W 92.6W
Annual home energy cost 8.91 $/year 22.31 $/year
Annual commercial energy cost 32.41 $/year 81.12 $/year
Typical power consumption 30.06W 75.24W
Intel Core i7 4702MQ
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AMD Opteron 856
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