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Differences What are the advantages of each

Front view of Intel Core i7 2670QM

Reasons to consider the
Intel Core i7 2670QM

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Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 14.38 pt/W vs 0.52 pt/W Around 27.8x better performance per watt
Much lower typical power consumption 36.56W vs 69.06W More than 45% lower typical power consumption
Higher clock speed 2.2 GHz vs 2 GHz More than 10% higher clock speed
Much higher Maximum operating temperature 100 °C vs 67 °C Around 50% higher Maximum operating temperature
Significantly better PassMark score 5,923 vs 1,083 Around 5.5x better PassMark score
Newer Oct, 2011 vs May, 2005 Release date over 6 years later
More threads 8 vs 2 6 more threads
More cores 4 vs 2 Twice as many cores; run more applications at once
Better overclocked clock speed (Air) 2.69 GHz vs 2 GHz Around 35% better overclocked clock speed (Air)
Much lower annual home energy cost 10.84 $/year vs 20.48 $/year More than 45% lower annual home energy cost
Much lower annual commercial energy cost 39.42 $/year vs 74.46 $/year More than 45% lower annual commercial energy cost
Slightly better overclocked clock speed (Water) 2.2 GHz vs 2 GHz More than 10% better overclocked clock speed (Water)
Front view of AMD Opteron 270

Reasons to consider the
AMD Opteron 270

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Significantly more l2 cache 2 MB vs 1 MB 2x 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 2 vs 1 Twice as many CPUs in SMP configuration

Benchmarks Real world tests of Core i7 2670QM vs Opteron 270

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core i7 2670QM  vs
Opteron 270 
Clock speed 2.2 GHz 2 GHz
Cores Quad core Dual core
Socket type
rPGA 988B
940

features

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

details

Core i7 2670QM  vs
Opteron 270 
Threads 8 2
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 2
Clock multiplier 22 10
Operating temperature Unknown - 100°C 0 - 67°C

overclocking

Overclocked clock speed 2.69 GHz 2 GHz
Overclocked clock speed (Water) 2.2 GHz 2 GHz
PassMark (Overclocked) 1,813.9 1,113.5
Overclocked clock speed (Air) 2.69 GHz 2 GHz

power consumption

TDP 45W 85W
Annual home energy cost 10.84 $/year 20.48 $/year
Annual commercial energy cost 39.42 $/year 74.46 $/year
Performance per watt 14.38 pt/W 0.52 pt/W
Typical power consumption 36.56W 69.06W
Intel Core i7 2670QM
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AMD Opteron 270
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