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Differences What are the advantages of each

Front view of Intel Core i5 4200U

Reasons to consider the
Intel Core i5 4200U

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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 better performance per watt 38.06 pt/W vs 0.87 pt/W Around 43.8x better performance per watt
Much lower typical power consumption 12.19W vs 69.06W 5.7x lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 67 °C Around 50% higher Maximum operating temperature
Newer Jul, 2013 vs May, 2005 Release date over 8 years later
Significantly better PassMark (Single core) score 1,380 vs 685 More than 2x better PassMark (Single core) score
Better geekbench 3 Multi-Core score 4,464 vs 2,534 More than 75% better geekbench 3 Multi-Core score
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
Better overclocked clock speed (Air) 2.49 GHz vs 2.2 GHz Around 15% better overclocked clock speed (Air)
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
Higher clock speed 2.2 GHz vs 1.6 GHz Around 40% higher clock speed
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 (Water) 2.2 GHz vs 1.6 GHz Around 40% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i5 4200U 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 i5 4200U
3,015,000 MB/s
Opteron 275
60,200 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 4200U  vs
Opteron 275 
Clock speed 1.6 GHz 2.2 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
3DNow!
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

details

Core i5 4200U  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 22 nm 90 nm
Max CPUs 1 2
Operating temperature Unknown - 100°C 0 - 67°C

overclocking

Overclocked clock speed 2.49 GHz 2.2 GHz
Overclocked clock speed (Water) 1.6 GHz 2.2 GHz
PassMark (Overclocked) 1,713.3 1,303.6
Overclocked clock speed (Air) 2.49 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 38.06 pt/W 0.87 pt/W
Typical power consumption 12.19W 69.06W
Intel Core i5 4200U
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AMD Opteron 275
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