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Differences What are the advantages of each

Front view of AMD Sempron 2650

Reasons to consider the
AMD Sempron 2650

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Much higher Maximum operating temperature 95 °C vs 70 °C More than 35% higher Maximum operating temperature
Much lower typical power consumption 20.31W vs 52.81W 2.6x lower typical power consumption
Newer manufacturing process 28 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower annual home energy cost 6.02 $/year vs 15.66 $/year 2.6x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 56.94 $/year 2.6x lower annual commercial energy cost
Newer Dec, 2013 vs May, 2013 Release date 7 months later
Front view of AMD A4 4000

Reasons to consider the
AMD A4 4000

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Much higher clock speed 3 GHz vs 1.4 GHz Around 2.2x higher clock speed
Much higher GPU clock speed 720 MHz vs 128 MHz Around 5.8x higher GPU clock speed
Much better PassMark score 1,809 vs 915 Around 2x better PassMark score
Much better PassMark (Single core) score 1,103 vs 534 More than 2x better PassMark (Single core) score

Benchmarks Real world tests of Sempron 2650 vs A4 4000

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Sempron 2650
13.81 mHash/s
A4 4000
20.49 mHash/s

CompuBench 1.5 (Face detection)

Sempron 2650
3.72 mPixels/s
A4 4000
2.42 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Sempron 2650
0.31 fps
A4 4000
0.38 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Sempron 2650
1,413
A4 4000
2,519

GeekBench 3 (Single core) Data courtesy Primate Labs

A4 4000
1,622

GeekBench 3 (AES single core) Data courtesy Primate Labs

Sempron 2650
732,100 MB/s
A4 4000
1,830,000 MB/s

PassMark Data courtesy Passmark

A4 4000
1,809

PassMark (Single Core)

A4 4000
1,103

Specifications Full list of technical specs

summary

Sempron 2650  vs
A4 4000 
Clock speed 1.4 GHz 3 GHz
Turbo clock speed None 3 GHz
Cores Dual core Dual core
Is unlocked No 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
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
ABM
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333

details

Sempron 2650  vs
A4 4000 
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
Manufacture process 28 nm 32 nm
Max CPUs 1 1
Voltage range 0.5 - 1.4V 0.8 - 1.45V
Operating temperature Unknown - 95°C Unknown - 70°C

integrated graphics

GPU GPU GPU
Label Radeon HD 8240 Radeon™ HD 7480D
Latest DirectX 11.0 11.0
GPU clock speed 128 MHz 720 MHz

power consumption

TDP 25W 65W
Annual home energy cost 6.02 $/year 15.66 $/year
Annual commercial energy cost 21.9 $/year 56.94 $/year
Performance per watt 9.03 pt/W 5.4 pt/W
Typical power consumption 20.31W 52.81W
AMD Sempron 2650
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AMD A4 4000
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