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Differences What are the advantages of each

Front view of AMD Athlon II X2 221

Reasons to consider the
AMD Athlon II X2 221

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Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jan, 2012 vs May, 2010 Release date over 1 years later
Front view of AMD Athlon II X2 220

Reasons to consider the
AMD Athlon II X2 220

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Much better overclocked clock speed (Air) 3.83 GHz vs 2.8 GHz More than 35% better overclocked clock speed (Air)
Much higher Maximum operating temperature 74 °C vs 65 °C Around 15% higher Maximum operating temperature
Much better overclocked clock speed (Water) 3.88 GHz vs 2.8 GHz Around 40% better overclocked clock speed (Water)

Features Key features of the Athlon II X2 221  vs 220 

clock speed

L2 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Athlon II X2 221  vs
220 
Clock speed 2.8 GHz 2.8 GHz
Cores Dual core Dual core
Socket type
FM1
AM3

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
AMD-V
3DNow!
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
Typical power consumption 52.81W 52.81W

details

Athlon II X2 221  vs
220 
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 32 nm 45 nm
Max CPUs 1 1
Voltage range 0.91 - 1.41V 0.9 - 1.4V
Operating temperature Unknown - 65°C Unknown - 74°C

overclocking

Overclocked clock speed 2.8 GHz 3.83 GHz
Overclocked clock speed (Water) 2.8 GHz 3.88 GHz
Overclocked clock speed (Air) 2.8 GHz 3.83 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
AMD Athlon II X2 221
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AMD Athlon II X2 220
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