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Differences What are the advantages of each

Front view of Intel Pentium G3420

Reasons to consider the
Intel Pentium G3420

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Much newer manufacturing process 22 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3.2 GHz vs 1.9 GHz Around 70% higher clock speed
Much lower typical power consumption 43.88W vs 93.44W 2.1x lower typical power consumption
Significantly more l3 cache per core 1.5 MB/core vs 0.5 MB/core 3x more l3 cache per core
Newer Jul, 2013 vs Sep, 2007 Release date over 5 years later
Much lower annual home energy cost 13.01 $/year vs 27.7 $/year 2.1x lower annual home energy cost
Much lower annual commercial energy cost 47.3 $/year vs 100.74 $/year 2.1x lower annual commercial energy cost
Front view of AMD Third Generation Opteron 2347

Reasons to consider the
AMD Third Generation Opteron 2347

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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
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More cores 4 vs 2 Twice as many cores; run more applications at once
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
More threads 4 vs 2 Twice as many threads

Features Key features of the Pentium G3420  vs Third Generation Opteron 2347 

Specifications Full list of technical specs

summary

Pentium G3420  vs
Third Generation Opteron 2347 
Clock speed 3.2 GHz 1.9 GHz
Cores Dual core Quad core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

details

Pentium G3420  vs
Third Generation Opteron 2347 
Threads 2 4
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 3 MB 2 MB
L3 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 22 nm 65 nm
Max CPUs 1 2
Operating temperature Unknown - 72°C 0 - 70°C

power consumption

TDP 54W 115W
Annual home energy cost 13.01 $/year 27.7 $/year
Annual commercial energy cost 47.3 $/year 100.74 $/year
Typical power consumption 43.88W 93.44W
Intel Pentium G3420
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AMD Third Generation Opteron 2347
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