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Differences What are the advantages of each

Front view of Intel Pentium G2020

Reasons to consider the
Intel Pentium G2020

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Much newer manufacturing process 22 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.9 GHz vs 2.4 GHz More than 20% higher clock speed
Newer Jan, 2013 vs Mar, 2005 Release date over 8 years later
Better PassMark score 2,770 vs 649 More than 4.2x better PassMark score
Better performance per watt 2.11 pt/W vs 0.48 pt/W More than 4.2x better performance per watt
More cores 2 vs 1 Twice as many cores; run more applications at once
Better overclocked clock speed (Air) 3.03 GHz vs 2.59 GHz More than 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 3.1 GHz vs 2.4 GHz Around 30% better overclocked clock speed (Water)
Front view of AMD Opteron 250 HE

Reasons to consider the
AMD Opteron 250 HE

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
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 Pentium G2020 vs Opteron 250 HE

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Pentium G2020  vs
Opteron 250 HE 
Clock speed 2.9 GHz 2.4 GHz
Cores Dual core Single core
Socket type
LGA 1155
940

features

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

details

Pentium G2020  vs
Opteron 250 HE 
Threads 2 1
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 22 nm 90 nm
Max CPUs 1 2
Clock multiplier 29 12

overclocking

Overclocked clock speed 3.03 GHz 2.59 GHz
Overclocked clock speed (Water) 3.1 GHz 2.4 GHz
PassMark (Overclocked) 2,960.3 925.7
Overclocked clock speed (Air) 3.03 GHz 2.59 GHz

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
Performance per watt 2.11 pt/W 0.48 pt/W
Typical power consumption 44.69W 44.69W
Intel Pentium G2020
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AMD Opteron 250 HE
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