CPUBoss Review Our evaluation of 4300 vs 255 among desktop CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

5

CPUBoss Score

Combination of all six facets

Winner
AMD FX 4300 

CPUBoss recommends the AMD FX 4300  based on its overclocking.

See full details

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VS

Differences What are the advantages of each

Front view of AMD FX 4300

Reasons to consider the
AMD FX 4300

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.8 GHz vs 3.1 GHz Around 25% higher clock speed
Much newer manufacturing process 32 nm vs 45 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
More threads 4 vs 2 Twice as many threads
Much better performance per watt 9.24 pt/W vs 0.8 pt/W More than 11.5x better performance per watt
Much lower typical power consumption 77.19W vs 116.42W Around 35% lower typical power consumption
Much better overclocked clock speed (Air) 4.48 GHz vs 3.8 GHz Around 20% better overclocked clock speed (Air)
Much lower annual home energy cost 22.89 $/year vs 42.79 $/year More than 45% lower annual home energy cost
Much better overclocked clock speed (Water) 4.98 GHz vs 3.93 GHz More than 25% better overclocked clock speed (Water)
Much lower annual commercial energy cost 83.22 $/year vs 113.7 $/year More than 25% lower annual commercial energy cost
Newer Oct, 2012 vs Jan, 2010 Release date over 2 years later
Front view of AMD Athlon II X2 255

Reasons to consider the
AMD Athlon II X2 255

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Significantly higher Maximum operating temperature 74 °C vs 70.5 °C Around 5% higher Maximum operating temperature

Benchmarks Real world tests of FX 4300 vs Athlon II X2 255

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

FX 4300
2,210,000 MB/s
Athlon II X2 255
125,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

3D Mark 11 (Physics)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

FX 4300  vs
Athlon II X2 255 
Clock speed 3.8 GHz 3.1 GHz
Cores Quad core Dual core
Socket type
AM3+
AM3
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
3DNow!
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 42.79 $/year
Annual commercial energy cost 83.22 $/year 113.7 $/year
Performance per watt 9.24 pt/W 0.8 pt/W
Typical power consumption 77.19W 116.42W

details

FX 4300  vs
Athlon II X2 255 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 4 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 4 MB 1 MB
L3 cache per core 1 MB/core 0.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Voltage range 0.81 - 1.43V 0.85 - 1.4V
Operating temperature Unknown - 70.5°C Unknown - 74°C

overclocking

Overclocked clock speed 4.48 GHz 3.8 GHz
Overclocked clock speed (Water) 4.98 GHz 3.93 GHz
Overclocked clock speed (Air) 4.48 GHz 3.8 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 FX 4300
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AMD Athlon II X2 255
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