CPUBoss Review Our evaluation of 4000+ vs 3800+ among desktop CPUs (45 to 75W)

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

1

CPUBoss Score

Combination of all six facets

Winner
AMD Athlon X2 3800+ 

CPUBoss recommends the AMD Athlon X2 3800+  based on its single-core performance.

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VS

Differences What are the advantages of each

Front view of AMD Athlon X2 4000+

Reasons to consider the
AMD Athlon X2 4000+

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Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.1 GHz vs 2 GHz More than 5% higher clock speed
Better overclocked clock speed (Air) 2.77 GHz vs 2.7 GHz Around 5% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 3.24 GHz vs 2.75 GHz Around 20% better overclocked clock speed (Water)
Front view of AMD Athlon X2 3800+

Reasons to consider the
AMD Athlon X2 3800+

Report a correction

CPUBoss is not aware of any important advantages of the 3800+ vs the 4000+.

Benchmarks Real world tests of Athlon X2 4000+ vs 3800+

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

Athlon X2 4000+
62.3 MB/s
Athlon X2 3800+
64.55 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

Athlon X2 4000+  vs
3800+ 
Clock speed 2.1 GHz 2 GHz
Cores Dual core Dual core
Socket type
AM2
939
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 0.73 pt/W 0.66 pt/W
Typical power consumption 52.81W 52.81W

details

Athlon X2 4000+  vs
3800+ 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 0 MB 0 MB
L3 cache per core 0 MB/core 0 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 1
Operating temperature Unknown - 55°C Unknown - 55°C

overclocking

Overclocked clock speed 2.77 GHz 2.7 GHz
Overclocked clock speed (Water) 3.24 GHz 2.75 GHz
PassMark (Overclocked) 466.1 1,578.7
Overclocked clock speed (Air) 2.77 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 Athlon X2 4000+
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AMD Athlon X2 3800+
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