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Differences What are the advantages of each

Front view of Intel Core i7 5500U

Reasons to consider the
Intel Core i7 5500U

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Much newer manufacturing process 14 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 46.04 pt/W vs 0.87 pt/W More than 52.8x better performance per watt
Much lower typical power consumption 12.19W vs 69.06W 5.7x lower typical power consumption
Higher clock speed 2.4 GHz vs 2.2 GHz Around 10% higher clock speed
Significantly better geekbench 3 Multi-Core score 5,775 vs 2,534 More than 2.2x better geekbench 3 Multi-Core score
Newer Jan, 2015 vs May, 2005 Release date over 9 years later
Significantly better PassMark (Single core) score 1,563 vs 685 More than 2.2x better PassMark (Single core) score
Better overclocked clock speed (Air) 2.92 GHz vs 2.2 GHz Around 35% better overclocked clock speed (Air)
Much lower annual home energy cost 3.61 $/year vs 20.48 $/year 5.7x lower annual home energy cost
Much lower annual commercial energy cost 13.14 $/year vs 74.46 $/year 5.7x lower annual commercial energy cost
More threads 4 vs 2 Twice as many threads
Slightly better overclocked clock speed (Water) 2.4 GHz vs 2.2 GHz Around 10% better overclocked clock speed (Water)
Front view of AMD Opteron 275

Reasons to consider the
AMD Opteron 275

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Much more l2 cache 2 MB vs 0.5 MB 4x 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 5500U vs Opteron 275

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

Core i7 5500U
3,570,000 MB/s
Opteron 275
60,200 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 5500U  vs
Opteron 275 
Clock speed 2.4 GHz 2.2 GHz
Cores Dual core Dual 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 5500U  vs
Opteron 275 
Threads 4 2
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 14 nm 90 nm
Max CPUs 1 2

overclocking

Overclocked clock speed 2.92 GHz 2.2 GHz
Overclocked clock speed (Water) 2.4 GHz 2.2 GHz
Overclocked clock speed (Air) 2.92 GHz 2.2 GHz

power consumption

TDP 15W 85W
Annual home energy cost 3.61 $/year 20.48 $/year
Annual commercial energy cost 13.14 $/year 74.46 $/year
Performance per watt 46.04 pt/W 0.87 pt/W
Typical power consumption 12.19W 69.06W
Intel Core i7 5500U
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AMD Opteron 275
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