CPUBoss Review Our evaluation of G2020 vs E8400


Benchmark performance using all cores

Passmark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)


How much speed can you get out of the processor?

overclock popularity


Are you paying a premium for performance?

Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Overclocking and Value

Intel Pentium G2020 

CPUBoss recommends the Intel Pentium G2020  based on its .

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Intel Pentium G2020

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Front view of Intel Pentium G2020

Differences What are the advantages of each

Front view of Intel Pentium G2020

Reasons to consider the
Intel Pentium G2020

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Newer manufacturing process 22 nms vs 45 nms A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Newer Jan, 2013 vs Jan, 2008 Release date over 5 years later
Better PassMark (Single core) score 1,560 vs 1,257 Around 25% better PassMark (Single core) score
Lower typical power consumption 44.69W vs 52.81W More than 15% lower typical power consumption
Better performance per watt 8.05 pt/W vs 5.78 pt/W Around 40% better performance per watt
Lower annual commercial energy cost 48.18 $/year vs 56.94 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 13.25 $/year vs 15.66 $/year More than 15% lower annual home energy cost
Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Much better performance per dollar 20.89 pt/$ vs 10.55 pt/$ Around 2x better performance per dollar
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing

Benchmarks Real world tests of Pentium G2020 vs Core2 Duo E8400


3D Mark 11 (Physics)

Pentium G2020 Core2 Duo E8400 @ community.futuremark.com

Specifications Full list of technical specs


Pentium G2020  vs
Core2 Duo E8400 
Clock speed 2.9 GHz 3 GHz
Cores Dual core Dual core
Socket type
LGA 1155
LGA 775
Is hyperthreaded No No


Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes


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


Architecture DMI FSB
Number of links 1 1


Pentium G2020  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 6 MB
L2 cache per core 0.5 MB/core 3 MB/core
Manufacture process 22 nms 45 nms
Max CPUs 1 1
Clock multiplier 29 9


Overclock popularity 3 125
Overclock review score 0.8 4.5

power consumption

TDP 55W 65W
Annual home energy cost 13.25 $/year 15.66 $/year
Annual commercial energy cost 48.18 $/year 56.94 $/year
Performance per watt 8.05 pt/W 5.78 pt/W
Typical power consumption 44.69W 52.81W
Intel Pentium G2020
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Intel Core2 Duo E8400
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