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Differences What are the advantages of each

Front view of Intel Pentium E2140

Reasons to consider the
Intel Pentium E2140

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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
Front view of Intel Celeron D 326

Reasons to consider the
Intel Celeron D 326

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Much better overclocked clock speed (Air) 3.73 GHz vs 3 GHz Around 25% better overclocked clock speed (Air)
Much higher Maximum operating temperature 67.7 °C vs 61.4 °C More than 10% higher Maximum operating temperature

Features Key features of the Pentium E2140  vs Celeron D 326 

clock speed

Pentium E2140
1.6 GHz
Celeron D 326
2.53 GHz

L2 cache

overclocked clock speed (air)

Celeron D 326
3.73 GHz

overclocked clock speed (water)

Pentium E2140
3.06 GHz
Celeron D 326
4.31 GHz

Specifications Full list of technical specs

summary

Pentium E2140  vs
Celeron D 326 
Clock speed 1.6 GHz 2.53 GHz
Cores Dual core Single core
Socket type
LGA 775
478

features

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

power consumption

TDP 65W 84W
Annual home energy cost 15.66 $/year 20.24 $/year
Annual commercial energy cost 56.94 $/year 73.58 $/year
Typical power consumption 52.81W 68.25W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 533 MHz

details

Pentium E2140  vs
Celeron D 326 
Architecture x86-64 x86-64
Threads 2 1
L2 cache 1 MB 0.25 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
Manufacture process 65 nm 90 nm
Transistor count 105,000,000 125,000,000
Max CPUs 1 1
Clock multiplier 8 19
Voltage range 0.85 - 1.5V 1.25 - 1.4V
Operating temperature Unknown - 61.4°C Unknown - 67.7°C

overclocking

Overclocked clock speed 3 GHz 3.73 GHz
Overclocked clock speed (Water) 3.06 GHz 4.31 GHz
Overclocked clock speed (Air) 3 GHz 3.73 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Pentium E2140
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Intel Celeron D 326
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