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Differences What are the advantages of each

Front view of Intel Pentium G645T

Reasons to consider the
Intel Pentium G645T

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
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
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Front view of Intel Celeron D 350

Reasons to consider the
Intel Celeron D 350

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Much lower typical power consumption 17.06W vs 28.44W 40% lower typical power consumption
Much better overclocked clock speed (Air) 3.2 GHz vs 2.5 GHz Around 30% better overclocked clock speed (Air)
Much higher Maximum operating temperature 67 °C vs 65 °C Around 5% higher Maximum operating temperature
Much better overclocked clock speed (Water) 3.2 GHz vs 2.5 GHz Around 30% better overclocked clock speed (Water)
Much lower annual home energy cost 5.06 $/year vs 8.43 $/year Around 40% lower annual home energy cost
Much lower annual commercial energy cost 18.4 $/year vs 30.66 $/year 40% lower annual commercial energy cost

Benchmarks Real world tests of Pentium G645T vs Celeron D 350

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium G645T  vs
Celeron D 350 
Clock speed 2.5 GHz 1.3 GHz
Cores Dual core Single core
Socket type
LGA 1155
478
479

features

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

power consumption

TDP 35W 21W
Annual home energy cost 8.43 $/year 5.06 $/year
Annual commercial energy cost 30.66 $/year 18.4 $/year
Performance per watt 3.81 pt/W 4.04 pt/W
Typical power consumption 28.44W 17.06W

bus

Architecture DMI FSB
Number of links 1 1

details

Pentium G645T  vs
Celeron D 350 
Architecture x86-64 x86
Threads 2 1
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 1
Clock multiplier 25 24
Operating temperature Unknown - 65°C Unknown - 67°C

overclocking

Overclocked clock speed 2.5 GHz 3.2 GHz
Overclocked clock speed (Water) 2.5 GHz 3.2 GHz
Overclocked clock speed (Air) 2.5 GHz 3.2 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics N/A
Number of displays supported 2 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,100 MHz N/A

memory controller

Memory controller Built-in Built-in
Intel Pentium G645T
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Intel Celeron D 350
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