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Differences What are the advantages of each

Front view of Intel Celeron G555

Reasons to consider the
Intel Celeron G555

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Much more l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Front view of Intel Celeron G1620

Reasons to consider the
Intel Celeron G1620

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Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More number of displays supported 3 vs 2 1 more number of displays supported
Lower typical power consumption 44.69W vs 52.81W More than 15% lower typical power consumption
Better overclocked clock speed (Air) 2.79 GHz vs 2.7 GHz Around 5% better overclocked clock speed (Air)
Lower annual home energy cost 13.25 $/year vs 15.66 $/year More than 15% lower annual home energy cost
Lower annual commercial energy cost 48.18 $/year vs 56.94 $/year More than 15% lower annual commercial energy cost

Benchmarks Real world tests of Celeron G555 vs G1620

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Celeron G555  vs
G1620 
Clock speed 2.7 GHz 2.7 GHz
Cores Dual core Dual core
Socket type
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing No No
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 65W 55W
Annual home energy cost 15.66 $/year 13.25 $/year
Annual commercial energy cost 56.94 $/year 48.18 $/year
Performance per watt 1.95 pt/W 1.99 pt/W
Typical power consumption 52.81W 44.69W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Celeron G555  vs
G1620 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 2 MB 2 MB
L3 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Clock multiplier 27 27

overclocking

Overclocked clock speed 2.7 GHz 2.79 GHz
Overclocked clock speed (Water) 2.7 GHz 2.7 GHz
Overclocked clock speed (Air) 2.7 GHz 2.79 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 3
GPU clock speed 850 MHz 650 MHz
Turbo clock speed 1,000 MHz 1,050 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 17,066.66 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Celeron G555
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Intel Celeron G1620
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