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Differences What are the advantages of each

Front view of AMD Phenom II X4 910e

Reasons to consider the
AMD Phenom II X4 910e

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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
Significantly higher clock speed 2.6 GHz vs 1.4 GHz More than 85% higher clock speed
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
More cores 4 vs 1 3 more cores; run more applications at once
Newer Jan, 2010 vs Jun, 2003 Release date over 6 years later
Lower typical power consumption 52.81W vs 66.71W More than 20% lower typical power consumption
Significantly better overclocked clock speed (Air) 2.6 GHz vs 1.69 GHz Around 55% better overclocked clock speed (Air)
More threads 4 vs 1 3 more threads
Significantly better overclocked clock speed (Water) 2.6 GHz vs 1.4 GHz More than 85% better overclocked clock speed (Water)
Lower annual home energy cost 15.66 $/year vs 19.78 $/year More than 20% lower annual home energy cost
Lower annual commercial energy cost 56.94 $/year vs 71.92 $/year More than 20% lower annual commercial energy cost
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 more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core

Features Key features of the Phenom II X4 910e  vs Opteron 840 

clock speed

Opteron 840
1.4 GHz

L2 cache

overclocked clock speed (air)

Opteron 840
1.69 GHz

overclocked clock speed (water)

Opteron 840
1.4 GHz

Specifications Full list of technical specs

summary

Phenom II X4 910e  vs
Opteron 840 
Clock speed 2.6 GHz 1.4 GHz
Cores Quad core Single core
Socket type
AM3
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!

details

Phenom II X4 910e  vs
Opteron 840 
Threads 4 1
L2 cache 2 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 45 nm 130 nm
Max CPUs 1 8
Voltage range 0.85 - 1.25V 1.5 - UnknownV

overclocking

Overclocked clock speed 2.6 GHz 1.69 GHz
Overclocked clock speed (Water) 2.6 GHz 1.4 GHz
Overclocked clock speed (Air) 2.6 GHz 1.69 GHz

power consumption

TDP 65W 82.1W
Annual home energy cost 15.66 $/year 19.78 $/year
Annual commercial energy cost 56.94 $/year 71.92 $/year
Typical power consumption 52.81W 66.71W
AMD Phenom II X4 910e
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AMD Opteron 840
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