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Differences What are the advantages of each

Front view of Intel Pentium G2120

Reasons to consider the
Intel Pentium G2120

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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 3.1 GHz vs 1.7 GHz More than 80% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 3.21 GHz vs 1.7 GHz Around 90% better overclocked clock speed (Air)
Significantly more l3 cache per core 1.5 MB/core vs 0.5 MB/core 3x more l3 cache per core
Newer Sep, 2012 vs Sep, 2007 Release date over 5 years later
Much better overclocked clock speed (Water) 3.1 GHz vs 1.7 GHz More than 80% better overclocked clock speed (Water)
Front view of AMD Opteron 2344 HE

Reasons to consider the
AMD Opteron 2344 HE

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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
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 threads 4 vs 2 Twice as many threads

Features Key features of the Pentium G2120  vs Opteron 2344 HE 

clock speed

Pentium G2120
3.1 GHz
Opteron 2344 HE
1.7 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Pentium G2120
3.21 GHz
Opteron 2344 HE
1.7 GHz

overclocked clock speed (water)

Pentium G2120
3.1 GHz
Opteron 2344 HE
1.7 GHz

Specifications Full list of technical specs

summary

Pentium G2120  vs
Opteron 2344 HE 
Clock speed 3.1 GHz 1.7 GHz
Cores Dual core Quad core
Socket type
LGA 1155
F

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

power consumption

TDP 55W 55W
Annual home energy cost 13.25 $/year 13.25 $/year
Annual commercial energy cost 48.18 $/year 48.18 $/year
Typical power consumption 44.69W 44.69W

details

Pentium G2120  vs
Opteron 2344 HE 
Threads 2 4
L2 cache 1 MB 2 MB
L2 cache per core 0.5 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
Clock multiplier 31 8

overclocking

Overclocked clock speed 3.21 GHz 1.7 GHz
Overclocked clock speed (Water) 3.1 GHz 1.7 GHz
Overclocked clock speed (Air) 3.21 GHz 1.7 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics N/A
Number of displays supported 3 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,050 MHz N/A
Intel Pentium G2120
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AMD Opteron 2344 HE
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