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Differences What are the advantages of each

Front view of Intel Celeron G550

Reasons to consider the
Intel Celeron G550

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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
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
Much higher GPU clock speed 850 MHz vs 200 MHz 4.2x higher GPU clock speed
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Higher clock speed 2.6 GHz vs 2.5 GHz Around 5% higher clock speed
Significantly better overclocked clock speed (Air) 2.75 GHz vs 2.5 GHz Around 10% better overclocked clock speed (Air)
Higher Maximum operating temperature 69.1 °C vs 66.4 °C Around 5% higher Maximum operating temperature
Better overclocked clock speed (Water) 2.6 GHz vs 2.5 GHz Around 5% better overclocked clock speed (Water)
Front view of Intel Celeron G1840T

Reasons to consider the
Intel Celeron G1840T

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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
Much lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Newer Feb, 2014 vs Jun, 2012 Release date over 1 years later

Benchmarks Real world tests of Celeron G550 vs G1840T

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Celeron G550  vs
G1840T 
Clock speed 2.6 GHz 2.5 GHz
Cores Dual core Dual core
Socket type
LGA 1155
LGA 1150

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 Yes No

power consumption

TDP 65W 35W
Annual home energy cost 15.66 $/year 8.43 $/year
Annual commercial energy cost 56.94 $/year 30.66 $/year
Performance per watt 2.11 pt/W 3.84 pt/W
Typical power consumption 52.81W 28.44W

bus

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

details

Celeron G550  vs
G1840T 
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 26 25
Operating temperature Unknown - 69.1°C Unknown - 66.4°C

overclocking

Overclocked clock speed 2.75 GHz 2.5 GHz
Overclocked clock speed (Water) 2.6 GHz 2.5 GHz
Overclocked clock speed (Air) 2.75 GHz 2.5 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 3
GPU clock speed 850 MHz 200 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
DDR3L-1333
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 G550
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Intel Celeron G1840T
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