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Differences What are the advantages of each

Front view of AMD Phenom II X4 945 95W

Reasons to consider the
AMD Phenom II X4 945 95W

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Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 3 GHz vs 2.5 GHz 20% higher clock speed
Much more l2 cache per core 0.5 MB/core vs 0.17 MB/core More than 3x more l2 cache per core
Much better overclocked clock speed (Water) 3.81 GHz vs 2.5 GHz More than 50% better overclocked clock speed (Water)
Better overclocked clock speed (Air) 3.68 GHz vs 3.57 GHz Around 5% better overclocked clock speed (Air)
Front view of AMD Phenom II X3 705e

Reasons to consider the
AMD Phenom II X3 705e

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Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Higher Maximum operating temperature 72 °C vs 70 °C Around 5% higher Maximum operating temperature
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Phenom II X4 945 95W vs X3 705e

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 945 95W
120,900 MB/s
Phenom II X3 705e
99.6 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 945 95W  vs
X3 705e 
Clock speed 3 GHz 2.5 GHz
Cores Quad core Tri 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 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Performance per watt 1.57 pt/W 1.15 pt/W
Typical power consumption 77.19W 52.81W

bus

Clock speed 2,000 MHz 2,000 MHz

details

Phenom II X4 945 95W  vs
X3 705e 
Architecture x86-64 x86-64
Threads 4 3
L2 cache 2 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.17 MB/core
L3 cache 6 MB 6 MB
L3 cache per core 1.5 MB/core 2 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.4V 0.8 - 1.25V
Operating temperature 55 - 70°C Unknown - 72°C

overclocking

Overclocked clock speed 3.68 GHz 3.57 GHz
Overclocked clock speed (Water) 3.81 GHz 2.5 GHz
Overclocked clock speed (Air) 3.68 GHz 3.57 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 945 95W
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AMD Phenom II X3 705e
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