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Differences What are the advantages of each

Front view of Intel Pentium G3220

Reasons to consider the
Intel Pentium G3220

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 43.88W vs 52.81W More than 15% lower typical power consumption
Newer Sep, 2013 vs Jan, 2008 Release date over 5 years later
Lower annual home energy cost 13.01 $/year vs 15.66 $/year More than 15% lower annual home energy cost
Lower annual commercial energy cost 47.3 $/year vs 56.94 $/year More than 15% lower annual commercial 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 0.5 MB 12x 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 0.25 MB/core 12x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 3.05 GHz Around 40% better overclocked clock speed (Air)
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Water) 4.23 GHz vs 3.2 GHz More than 30% better overclocked clock speed (Water)

Benchmarks Real world tests of Pentium G3220 vs Core2 Duo E8400

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Pentium G3220
3.54 mHash/s
Core2 Duo E8400
2.41 mHash/s

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium G3220
171,700 MB/s
Core2 Duo E8400
128,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium G3220  vs
Core2 Duo E8400 
Clock speed 3 GHz 3 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 54W 65W
Annual home energy cost 13.01 $/year 15.66 $/year
Annual commercial energy cost 47.3 $/year 56.94 $/year
Performance per watt 2.75 pt/W 1.83 pt/W
Typical power consumption 43.88W 52.81W

details

Pentium G3220  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 0.5 MB 6 MB
L2 cache per core 0.25 MB/core 3 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 1
Operating temperature Unknown - 72°C Unknown - 72.4°C

overclocking

Overclocked clock speed 3.05 GHz 4.22 GHz
Overclocked clock speed (Water) 3.2 GHz 4.23 GHz
Overclocked clock speed (Air) 3.05 GHz 4.22 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,100 MHz N/A

bus

Architecture DMI 2.0 FSB
Number of links 0 1
Intel Pentium G3220
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Intel Core2 Duo E8400
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