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Differences What are the advantages of each

Front view of Intel Core i7 2635QM

Reasons to consider the
Intel Core i7 2635QM

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Much newer manufacturing process 32 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 15.88 pt/W vs 0.3 pt/W Around 52.5x better performance per watt
Much lower typical power consumption 36.56W vs 69.31W More than 45% lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 71 °C More than 40% higher Maximum operating temperature
Significantly better PassMark score 5,442 vs 632 More than 8.5x better PassMark score
More threads 8 vs 1 7 more threads
Newer Jan, 2011 vs May, 2004 Release date over 6 years later
More cores 4 vs 1 3 more cores; run more applications at once
Much lower annual home energy cost 10.84 $/year vs 20.55 $/year More than 45% lower annual home energy cost
Much lower annual commercial energy cost 39.42 $/year vs 74.72 $/year More than 45% lower annual commercial energy cost
Front view of AMD Opteron 246

Reasons to consider the
AMD Opteron 246

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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
Better overclocked clock speed (Air) 2.31 GHz vs 2 GHz More than 15% better overclocked clock speed (Air)

Benchmarks Real world tests of Core i7 2635QM vs Opteron 246

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core i7 2635QM  vs
Opteron 246 
Clock speed 2 GHz 2 GHz
Cores Quad core Single core
Socket type
BGA 1224
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 2635QM  vs
Opteron 246 
Threads 8 1
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 32 nm 130 nm
Max CPUs 1 2
Clock multiplier 20 10
Operating temperature Unknown - 100°C 0 - 71°C

overclocking

Overclocked clock speed 2 GHz 2.31 GHz
Overclocked clock speed (Water) 2 GHz 2 GHz
Overclocked clock speed (Air) 2 GHz 2.31 GHz

power consumption

TDP 45W 85.3W
Annual home energy cost 10.84 $/year 20.55 $/year
Annual commercial energy cost 39.42 $/year 74.72 $/year
Performance per watt 15.88 pt/W 0.3 pt/W
Typical power consumption 36.56W 69.31W
Intel Core i7 2635QM
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AMD Opteron 246
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