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Differences What are the advantages of each

Front view of Intel Core i5 2450M

Reasons to consider the
Intel Core i5 2450M

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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 19.45 pt/W vs 0.75 pt/W More than 25.8x better performance per watt
Much lower typical power consumption 28.44W vs 77.19W 2.7x lower typical power consumption
Much better geekbench 3 Multi-Core score 4,752 vs 1,379 Around 3.5x better geekbench 3 Multi-Core score
Significantly better geekbench 3 single core score 2,246 vs 922 Around 2.5x better geekbench 3 single core score
Much higher Maximum operating temperature 100 °C vs 67 °C Around 50% higher Maximum operating temperature
Newer Jan, 2012 vs Sep, 2005 Release date over 6 years later
Much lower annual home energy cost 8.43 $/year vs 22.89 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 83.22 $/year 2.7x lower annual commercial energy cost
More threads 4 vs 2 Twice as many threads
Better overclocked clock speed (Air) 2.94 GHz vs 2.56 GHz Around 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.87 GHz vs 2.4 GHz Around 20% better overclocked clock speed (Water)
Front view of AMD Opteron 880

Reasons to consider the
AMD Opteron 880

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
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 0.5 MB/core 2x more l2 cache per core

Benchmarks Real world tests of Core i5 2450M vs Opteron 880

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 2450M
1,980,000 MB/s
Opteron 880
63,500 MB/s

Specifications Full list of technical specs

summary

Core i5 2450M  vs
Opteron 880 
Clock speed 2.5 GHz 2.4 GHz
Cores Dual core Dual core
Socket type
rPGA 988B
BGA 1023
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 i5 2450M  vs
Opteron 880 
Threads 4 2
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 8
Clock multiplier 25 12
Operating temperature Unknown - 100°C 0 - 67°C

overclocking

Overclocked clock speed 2.94 GHz 2.56 GHz
Overclocked clock speed (Water) 2.87 GHz 2.4 GHz
Overclocked clock speed (Air) 2.94 GHz 2.56 GHz

power consumption

TDP 35W 95W
Annual home energy cost 8.43 $/year 22.89 $/year
Annual commercial energy cost 30.66 $/year 83.22 $/year
Performance per watt 19.45 pt/W 0.75 pt/W
Typical power consumption 28.44W 77.19W
Intel Core i5 2450M
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AMD Opteron 880
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