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Differences What are the advantages of each

Front view of Intel Celeron G1840T

Reasons to consider the
Intel Celeron G1840T

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Higher clock speed 2.5 GHz vs 2.2 GHz Around 15% higher clock speed
Significantly better performance per dollar 3.2 pt/$ vs 2.88 pt/$ More than 10% better performance per dollar
Better turbo clock speed 1,050 MHz vs 1,000 MHz 5% better turbo clock speed
Slightly better PassMark (Single core) score 1,444 vs 1,295 More than 10% better PassMark (Single core) score
Better overclocked clock speed (Air) 2.5 GHz vs 2.2 GHz Around 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.5 GHz vs 2.2 GHz Around 15% better overclocked clock speed (Water)
Newer Feb, 2014 vs Jan, 2014 Release date 1 months later
Front view of Intel Celeron G1820TE

Reasons to consider the
Intel Celeron G1820TE

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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
Higher GPU clock speed 350 MHz vs 200 MHz 75% higher GPU clock speed

Benchmarks Real world tests of Celeron G1840T vs G1820TE

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Celeron G1840T  vs
G1820TE 
Clock speed 2.5 GHz 2.2 GHz
Cores Dual core Dual core
Socket type
LGA 1150
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling No Yes

power consumption

TDP 35W 35W
Annual home energy cost 8.43 $/year 8.43 $/year
Annual commercial energy cost 30.66 $/year 30.66 $/year
Performance per watt 3.84 pt/W 3.45 pt/W
Typical power consumption 28.44W 28.44W

bus

Architecture DMI 2.0 DMI 2.0
Number of links 1 0
Transfer rate 5,000 MT/s 5,000 MT/s

details

Celeron G1840T  vs
G1820TE 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 0.5 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 2 MB 2 MB
L3 cache per core 1 MB/core 1 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Clock multiplier 25 22

overclocking

Overclocked clock speed 2.5 GHz 2.2 GHz
Overclocked clock speed (Water) 2.5 GHz 2.2 GHz
Overclocked clock speed (Air) 2.5 GHz 2.2 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics HD (Haswell)
Number of displays supported 3 3
GPU clock speed 200 MHz 350 MHz
Turbo clock speed 1,050 MHz 1,000 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3L-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 12,800 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Celeron G1840T
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Intel Celeron G1820TE
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