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Differences What are the advantages of each

Front view of Intel Core2 Duo E6320

Reasons to consider the
Intel Core2 Duo E6320

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Higher clock speed 1.86 GHz vs 1.6 GHz More than 15% higher clock speed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 3.11 GHz vs 2.54 GHz More than 20% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.17 GHz vs 1.6 GHz Around 2x better overclocked clock speed (Water)
Front view of AMD Athlon II X2 250u

Reasons to consider the
AMD Athlon II X2 250u

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher Maximum operating temperature 81 °C vs 60.1 °C Around 35% higher Maximum operating temperature
Much lower typical power consumption 20.31W vs 52.81W 2.6x lower typical power consumption
Much lower annual home energy cost 6.02 $/year vs 15.66 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 56.94 $/year 2.6x lower annual commercial energy cost
Newer Nov, 2009 vs Apr, 2007 Release date over 2 years later

Benchmarks Real world tests of Core2 Duo E6320 vs Athlon II X2 250u

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

Core2 Duo E6320
79,500 MB/s
Athlon II X2 250u
63,700 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E6320  vs
Athlon II X2 250u 
Clock speed 1.86 GHz 1.6 GHz
Cores Dual core Dual core
Socket type
LGA 775
AM3

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 25W
Annual home energy cost 15.66 $/year 6.02 $/year
Annual commercial energy cost 56.94 $/year 21.9 $/year
Performance per watt 1.2 pt/W 2.52 pt/W
Typical power consumption 52.81W 20.31W

details

Core2 Duo E6320  vs
Athlon II X2 250u 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 4 MB 2 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.5V 0.85 - 1.15V
Operating temperature Unknown - 60.1°C Unknown - 81°C

overclocking

Overclocked clock speed 3.11 GHz 2.54 GHz
Overclocked clock speed (Water) 3.17 GHz 1.6 GHz
Overclocked clock speed (Air) 3.11 GHz 2.54 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

bus

Clock speed 1,066 MHz 1,600 MHz
Intel Core2 Duo E6320
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AMD Athlon II X2 250u
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