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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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Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher Maximum operating temperature 61.4 °C vs 55 °C More than 10% higher Maximum operating temperature
Much better overclocked clock speed (Air) 3 GHz vs 2.7 GHz More than 10% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 3.06 GHz vs 2.75 GHz More than 10% better overclocked clock speed (Water)
Newer Apr, 2007 vs May, 2006 Release date 10 months later
Front view of AMD Athlon X2 3800+

Reasons to consider the
AMD Athlon X2 3800+

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Significantly higher clock speed 2 GHz vs 1.6 GHz Around 25% higher clock speed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines

Benchmarks Real world tests of Pentium E2140 vs Athlon X2 3800+

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium E2140
68,300 MB/s
Athlon X2 3800+
64.55 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

3D Mark 11 (Physics)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium E2140  vs
Athlon X2 3800+ 
Clock speed 1.6 GHz 2 GHz
Cores Dual core Dual core
Socket type
LGA 775
AM2
939

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 0.99 pt/W 0.66 pt/W
Typical power consumption 52.81W 52.81W

details

Pentium E2140  vs
Athlon X2 3800+ 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 1
Voltage range 0.85 - 1.5V 1.2 - 1.25V
Operating temperature Unknown - 61.4°C Unknown - 55°C

overclocking

Overclocked clock speed 3 GHz 2.7 GHz
Overclocked clock speed (Water) 3.06 GHz 2.75 GHz
Overclocked clock speed (Air) 3 GHz 2.7 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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AMD Athlon X2 3800+
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