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Differences What are the advantages of each

Front view of AMD Phenom II X4 910e

Reasons to consider the
AMD Phenom II X4 910e

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Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l3 cache 6 MB vs 0.5 MB 12x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better PassMark score 3,307 vs 1,098 More than 3x better PassMark score
Much better PassMark (Single core) score 921 vs 669 Around 40% better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 3,983 vs 1,585 More than 2.5x better geekbench 2 (32-bit) score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.6 GHz vs 2.3 GHz Around 15% higher clock speed
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much more l3 cache per core 1.5 MB/core vs 0.25 MB/core 6x more l3 cache per core
Newer Jan, 2010 vs Apr, 2008 Release date over 1 years later
Front view of AMD Athlon X2 4450e

Reasons to consider the
AMD Athlon X2 4450e

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Much better overclocked clock speed (Air) 3.01 GHz vs 2.6 GHz More than 15% better overclocked clock speed (Air)
Much higher Maximum operating temperature 78 °C vs 71 °C Around 10% higher Maximum operating temperature
Significantly lower typical power consumption 36.56W vs 52.81W More than 30% lower typical power consumption
Much better overclocked clock speed (Water) 3.27 GHz vs 2.6 GHz More than 25% better overclocked clock speed (Water)
Significantly lower annual home energy cost 10.84 $/year vs 15.66 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 39.42 $/year vs 56.94 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Phenom II X4 910e vs Athlon X2 4450e

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

Phenom II X4 910e
104,950 MB/s
Athlon X2 4450e
63,550 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II X4 910e  vs
Athlon X2 4450e 
Clock speed 2.6 GHz 2.3 GHz
Cores Quad core Dual core
Socket type
AM3
AM2
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 65W 45W
Annual home energy cost 15.66 $/year 10.84 $/year
Annual commercial energy cost 56.94 $/year 39.42 $/year
Performance per watt 1.99 pt/W 1.56 pt/W
Typical power consumption 52.81W 36.56W

details

Phenom II X4 910e  vs
Athlon X2 4450e 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 2 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 6 MB 0.5 MB
L3 cache per core 1.5 MB/core 0.25 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 71°C Unknown - 78°C

overclocking

Overclocked clock speed 2.6 GHz 3.01 GHz
Overclocked clock speed (Water) 2.6 GHz 3.27 GHz
Overclocked clock speed (Air) 2.6 GHz 3.01 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 Phenom II X4 910e
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AMD Athlon X2 4450e
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