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Differences What are the advantages of each

Front view of Intel Core i5 760

Reasons to consider the
Intel Core i5 760

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Much newer manufacturing process 45 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 2.8 GHz vs 1.4 GHz 2x higher clock speed
Much better overclocked clock speed (Air) 4.13 GHz vs 1.69 GHz Around 2.5x better overclocked clock speed (Air)
Newer Jul, 2010 vs Sep, 2003 Release date over 6 years later
More cores 4 vs 1 3 more cores; run more applications at once
Much better overclocked clock speed (Water) 4.49 GHz vs 1.4 GHz Around 3.2x better overclocked clock speed (Water)
More threads 4 vs 1 3 more threads
Front view of AMD Opteron 840

Reasons to consider the
AMD Opteron 840

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Much lower typical power consumption 68.82W vs 114.5W Around 40% lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Much lower annual home energy cost 20.4 $/year vs 39.42 $/year Around 50% lower annual home energy cost
Much lower annual commercial energy cost 74.2 $/year vs 115.63 $/year More than 35% lower annual commercial energy cost

Features Key features of the Core i5 760  vs Opteron 840 

clock speed

Core i5 760
2.8 GHz
Opteron 840
1.4 GHz

L2 cache

overclocked clock speed (air)

Core i5 760
4.13 GHz
Opteron 840
1.69 GHz

overclocked clock speed (water)

Core i5 760
4.49 GHz
Opteron 840
1.4 GHz

TDP

Specifications Full list of technical specs

summary

Core i5 760  vs
Opteron 840 
Clock speed 2.8 GHz 1.4 GHz
Cores Quad core Single core
Socket type
LGA 1156
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3

details

Core i5 760  vs
Opteron 840 
Threads 4 1
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 45 nm 130 nm
Max CPUs 1 8
Clock multiplier 21 7
Voltage range 0.65 - 1.4V 1.5 - UnknownV

overclocking

Overclocked clock speed 4.13 GHz 1.69 GHz
Overclocked clock speed (Water) 4.49 GHz 1.4 GHz
Overclocked clock speed (Air) 4.13 GHz 1.69 GHz

power consumption

TDP 95W 84.7W
Annual home energy cost 39.42 $/year 20.4 $/year
Annual commercial energy cost 115.63 $/year 74.2 $/year
Typical power consumption 114.5W 68.82W
Intel Core i5 760
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AMD Opteron 840
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