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Differences What are the advantages of each

Front view of AMD Athlon II X4 620e

Reasons to consider the
AMD Athlon II X4 620e

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More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Front view of AMD Athlon II X2 245e

Reasons to consider the
AMD Athlon II X2 245e

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Much better overclocked clock speed (Air) 4.2 GHz vs 2.6 GHz More than 60% better overclocked clock speed (Air)

Benchmarks Real world tests of Athlon II X4 620e vs X2 245e

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Athlon II X4 620e  vs
X2 245e 
Clock speed 2.7 GHz 2.9 GHz
Cores Quad core Dual core
Socket type
AM3
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 45W 45W
Annual home energy cost 10.84 $/year 10.84 $/year
Annual commercial energy cost 39.42 $/year 39.42 $/year
Performance per watt 2.64 pt/W 2.55 pt/W
Typical power consumption 36.56W 36.56W

details

Athlon II X4 620e  vs
X2 245e 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 0 MB 2 MB
L2 cache per core 0 MB/core 1 MB/core
L3 cache 0 MB 1 MB
L3 cache per core 0 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.6 GHz 4.2 GHz
Overclocked clock speed (Water) 2.6 GHz 2.9 GHz
Overclocked clock speed (Air) 2.6 GHz 4.2 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 2,000 MHz 2,000 MHz
AMD Athlon II X4 620e
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AMD Athlon II X2 245e
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