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Differences What are the advantages of each

Front view of AMD Phenom X4 9950

Reasons to consider the
AMD Phenom X4 9950

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
Higher Maximum operating temperature 64 °C vs 55 °C More than 15% higher Maximum operating temperature
More threads 4 vs 2 Twice as many threads
Newer Jul, 2008 vs Aug, 2007 Release date 11 months later
Front view of AMD Opteron 1224 SE

Reasons to consider the
AMD Opteron 1224 SE

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Higher clock speed 3.2 GHz vs 2.6 GHz Around 25% higher clock speed
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Lower typical power consumption 101.56W vs 113.75W More than 10% lower typical power consumption
Better overclocked clock speed (Air) 3.41 GHz vs 3.11 GHz Around 10% better overclocked clock speed (Air)
Lower annual home energy cost 30.11 $/year vs 33.73 $/year More than 10% lower annual home energy cost
Lower annual commercial energy cost 109.5 $/year vs 122.64 $/year More than 10% lower annual commercial energy cost

Features Key features of the Phenom X4 9950  vs Opteron 1224 SE 

clock speed

L2 cache

L3 cache

overclocked clock speed (air)

Phenom X4 9950
3.11 GHz
Opteron 1224 SE
3.41 GHz

overclocked clock speed (water)

Phenom X4 9950
3.37 GHz
Opteron 1224 SE
3.2 GHz

Specifications Full list of technical specs

summary

Phenom X4 9950  vs
Opteron 1224 SE 
Clock speed 2.6 GHz 3.2 GHz
Cores Quad core Dual core
Socket type
AM2+
AM2
Is unlocked Yes 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 140W 125W
Annual home energy cost 33.73 $/year 30.11 $/year
Annual commercial energy cost 122.64 $/year 109.5 $/year
Typical power consumption 113.75W 101.56W

details

Phenom X4 9950  vs
Opteron 1224 SE 
Threads 4 2
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 2 MB 1 MB
L3 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 64°C Unknown - 55°C

overclocking

Overclocked clock speed 3.11 GHz 3.41 GHz
Overclocked clock speed (Water) 3.37 GHz 3.2 GHz
PassMark (Overclocked) 2,145.3 1,610.5
Overclocked clock speed (Air) 3.11 GHz 3.41 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 X4 9950
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AMD Opteron 1224 SE
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