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Differences What are the advantages of each

Front view of AMD Phenom II X4 925

Reasons to consider the
AMD Phenom II X4 925

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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
Higher clock speed 2.8 GHz vs 2.7 GHz Around 5% higher clock speed
Better overclocked clock speed (Water) 2.8 GHz vs 2.7 GHz Around 5% better overclocked clock speed (Water)
Front view of AMD Athlon II X2 235e

Reasons to consider the
AMD Athlon II X2 235e

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Much lower typical power consumption 36.56W vs 77.19W 2.1x lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much lower annual commercial energy cost 39.42 $/year vs 83.22 $/year 2.1x lower annual commercial energy cost
Much lower annual home energy cost 10.84 $/year vs 22.89 $/year 2.1x lower annual home energy cost
Higher Maximum operating temperature 72 °C vs 71 °C Almost the same

Benchmarks Real world tests of Phenom II X4 925 vs Athlon II X2 235e

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 925
113,350 MB/s
Athlon II X2 235e
107,550 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II X4 925  vs
Athlon II X2 235e 
Clock speed 2.8 GHz 2.7 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 95W 45W
Annual home energy cost 22.89 $/year 10.84 $/year
Annual commercial energy cost 83.22 $/year 39.42 $/year
Performance per watt 1.48 pt/W 2.34 pt/W
Typical power consumption 77.19W 36.56W

bus

Clock speed 2,000 MHz 2,000 MHz

details

Phenom II X4 925  vs
Athlon II X2 235e 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 6 MB 1 MB
L3 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Operating temperature Unknown - 71°C Unknown - 72°C

overclocking

Overclock popularity 1 0
Overclocked clock speed 3.69 GHz 3.73 GHz
Overclocked clock speed (Water) 2.8 GHz 2.7 GHz
Overclocked clock speed (Air) 3.69 GHz 3.73 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 925
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AMD Athlon II X2 235e
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