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AMD Athlon II X3 445

Front view of AMD Athlon II X3 445
Front view of AMD Athlon II X2 265

AMD Athlon II X2 265

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Differences What are the advantages of each

Front view of AMD Athlon II X3 445

Reasons to consider the
AMD Athlon II X3 445

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
More cores 3 vs 2 1 more cores; run more applications at once
More threads 3 vs 2 1 more threads
Much better performance per watt 1.42 pt/W vs 1.11 pt/W Around 30% better performance per watt
Much lower typical power consumption 77.19W vs 102.72W Around 25% lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 36.79 $/year Around 40% lower annual home energy cost
Higher Maximum operating temperature 75 °C vs 74 °C Almost the same
Significantly better overclocked clock speed (Water) 3.88 GHz vs 3.3 GHz Around 20% better overclocked clock speed (Water)
Significantly lower annual commercial energy cost 83.22 $/year vs 101.7 $/year Around 20% lower annual commercial energy cost
Front view of AMD Athlon II X2 265

Reasons to consider the
AMD Athlon II X2 265

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Much more l3 cache 1 MB vs 0.5 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l3 cache per core 0.5 MB/core vs 0.17 MB/core More than 3x more l3 cache per core
Higher clock speed 3.3 GHz vs 3.1 GHz More than 5% higher clock speed
Better overclocked clock speed (Air) 3.86 GHz vs 3.72 GHz Around 5% better overclocked clock speed (Air)

Benchmarks Real world tests of Athlon II X3 445 vs X2 265

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Athlon II X3 445
4,233
Athlon II X2 265
3,122

GeekBench 3 (Single core) Data courtesy Primate Labs

Athlon II X3 445
1,582
Athlon II X2 265
1,703

GeekBench 3 (AES single core) Data courtesy Primate Labs

Athlon II X3 445
125,450 MB/s
Athlon II X2 265
133,500 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Athlon II X3 445
4,066
Athlon II X2 265
3,034

GeekBench

Athlon II X3 445
6,631
Athlon II X2 265
4,028

PassMark Data courtesy Passmark

Athlon II X3 445
2,582
Athlon II X2 265
1,876

PassMark (Single Core)

Athlon II X3 445
1,049
Athlon II X2 265
1,110

Specifications Full list of technical specs

summary

 Athlon II X3 445  vs
X2 265 
Clock speed 3.1 GHz 3.3 GHz
Cores Tri core Dual core
Socket type
AM3
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 95W 65W
Annual home energy cost 22.89 $/year 36.79 $/year
Annual commercial energy cost 83.22 $/year 101.7 $/year
Performance per watt 1.42 pt/W 1.11 pt/W
Typical power consumption 77.19W 102.72W

bus
Clock speed 2,000 MHz 2,000 MHz

details

 Athlon II X3 445  vs
X2 265 
Architecture x86-64 x86-64
Threads 3 2
L2 cache 2 MB 2 MB
L2 cache per core 0.67 MB/core 1 MB/core
L3 cache 0.5 MB 1 MB
L3 cache per core 0.17 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.4V 0.82 - 1.4V
Operating temperature Unknown - 75°C Unknown - 74°C

overclocking
Overclocked clock speed 3.72 GHz 3.86 GHz
Overclocked clock speed (Water) 3.88 GHz 3.3 GHz
Overclocked clock speed (Air) 3.72 GHz 3.86 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 Athlon II X3 445
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AMD Athlon II X2 265
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