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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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CPUBoss is not aware of any important advantages of the Phenom II X4 945 95W vs the Athlon II X4 645.

Front view of AMD Athlon II X4 645

Reasons to consider the
AMD Athlon II X4 645

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CPUBoss is not aware of any important advantages of the Athlon II X4 645 vs the Phenom II X4 945 95W.

Benchmarks Real world tests of Phenom II X4 945 95W vs Athlon II X4 645

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
Athlon II X4 645
124,500 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 945 95W  vs
Athlon II X4 645 
Clock speed 3 GHz 3.1 GHz
Cores Quad core Quad 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 95W
Annual home energy cost 22.89 $/year 44.01 $/year
Annual commercial energy cost 83.22 $/year 121.5 $/year
Performance per watt 1.57 pt/W 1.08 pt/W
Typical power consumption 77.19W 122.78W

bus

Clock speed 2,000 MHz 2,000 MHz

details

Phenom II X4 945 95W  vs
Athlon II X4 645 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 2 MB 2 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 0.13 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.4V 1.05 - 1.4V
Operating temperature 55 - 70°C Unknown - 71°C

overclocking

Overclock popularity 34 15
Overclocked clock speed 3.68 GHz 3.67 GHz
Overclocked clock speed (Water) 3.81 GHz 3.1 GHz
Overclocked clock speed (Air) 3.68 GHz 3.67 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 Athlon II X4 645
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