CPUBoss Review Our evaluation of 4300 vs 3800+ 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 performance, single-core performance and overclocking.

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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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Much higher clock speed 3.8 GHz vs 2 GHz Around 90% higher clock speed
Much more l3 cache 4 MB vs 0 MB Compared to all cpus, 4 MB l3 cache is just OK
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better PassMark score 4,651 vs 1,003 Around 4.8x better PassMark score
Much better PassMark (Single core) score 1,406 vs 675 More than 2x better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 5,404 vs 1,494 More than 3.5x better geekbench 2 (32-bit) score
Much better overclocked clock speed (Air) 4.48 GHz vs 2.7 GHz More than 65% better overclocked clock speed (Air)
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 0.66 pt/W Around 14x better performance per watt
Much more l3 cache per core 1 MB/core vs 0 MB/core Compared to all cpus, 1 MB/core l3 cache per core is just OK
Much higher Maximum operating temperature 70.5 °C vs 55 °C Around 30% higher Maximum operating temperature
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much better overclocked clock speed (Water) 4.98 GHz vs 2.75 GHz More than 80% better overclocked clock speed (Water)
Newer Oct, 2012 vs May, 2006 Release date over 6 years later
Front view of AMD Athlon X2 3800+

Reasons to consider the
AMD Athlon X2 3800+

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Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
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 FX 4300 vs Athlon X2 3800+

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

FX 4300
1,981

GeekBench 3 (AES single core) Data courtesy Primate Labs

FX 4300
2,210,000 MB/s
Athlon X2 3800+
64.55 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

FX 4300
5,404

GeekBench

FX 4300
5,404

3D Mark 11 (Physics)

PassMark Data courtesy Passmark

FX 4300
4,651

PassMark (Single Core)

Reviews Word on the street

Specifications Full list of technical specs

summary

FX 4300  vs
Athlon X2 3800+ 
Clock speed 3.8 GHz 2 GHz
Cores Quad core Dual core
Socket type
AM3+
AM2
939
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 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Performance per watt 9.24 pt/W 0.66 pt/W
Typical power consumption 77.19W 52.81W

details

FX 4300  vs
Athlon X2 3800+ 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 4 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
L3 cache 4 MB 0 MB
L3 cache per core 1 MB/core 0 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 1
Voltage range 0.81 - 1.43V 1.2 - 1.25V
Operating temperature Unknown - 70.5°C Unknown - 55°C

overclocking

Overclocked clock speed 4.48 GHz 2.7 GHz
Overclocked clock speed (Water) 4.98 GHz 2.75 GHz
Overclocked clock speed (Air) 4.48 GHz 2.7 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 X2 3800+
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