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Differences What are the advantages of each

Front view of Intel G3900

Reasons to consider the
Intel G3900

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Oct, 2015 vs Feb, 2014 Release date over 1 years later
Front view of Intel Celeron G1840

Reasons to consider the
Intel Celeron G1840

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Better turbo clock speed 1,050 MHz vs 950 MHz More than 10% better turbo clock speed

Features Key features of the G3900  vs Celeron G1840 

clock speed

G3900
2.8 GHz
Celeron G1840
2.8 GHz

L3 cache

G3900
2 MB

gpu clock speed

G3900
350 MHz
Celeron G1840
350 MHz

TDP

Specifications Full list of technical specs

summary

G3900  vs
Celeron G1840 
Clock speed 2.8 GHz 2.8 GHz
Cores Dual core Dual core

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
AES
Supports dynamic frequency scaling Yes No

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3L-1333
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 12,800 MB/s 21,333.32 MB/s
Maximum memory size 65,536 MB 32,768 MB

details

G3900  vs
Celeron G1840 
Architecture x86-64 x86-64
Threads 2 2
L3 cache 2 MB 2 MB
L3 cache per core 1 MB/core 1 MB/core
Manufacture process 14 nm 22 nm
Max CPUs 1 1

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 510 Intel® HD Graphics
Number of displays supported 3 3
GPU clock speed 350 MHz 350 MHz
Turbo clock speed 950 MHz 1,050 MHz

power consumption

TDP 51W 53W
Annual home energy cost 12.29 $/year 12.77 $/year
Annual commercial energy cost 44.68 $/year 46.43 $/year
Typical power consumption 41.44W 43.06W

bus

Architecture FSB DMI 2.0
Number of links 1 1
Transfer rate 8,000 MT/s 5,000 MT/s
Intel G3900
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Intel Celeron G1840
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