CPUBoss Review Our evaluation of 640 vs 605e 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

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of AMD Athlon II X4 640

Reasons to consider the
AMD Athlon II X4 640

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Much higher clock speed 3 GHz vs 2.3 GHz More than 30% higher clock speed
Much better performance per watt 1.54 pt/W vs 0.64 pt/W Around 2.5x better performance per watt
Much lower typical power consumption 77.19W vs 130.78W More than 40% lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 53.03 $/year 2.3x lower annual home energy cost
Significantly better overclocked clock speed (Air) 3.57 GHz vs 3.36 GHz More than 5% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.89 GHz vs 2.3 GHz Around 70% better overclocked clock speed (Water)
Much lower annual commercial energy cost 83.22 $/year vs 120.63 $/year More than 30% lower annual commercial energy cost
Front view of AMD Athlon II X4 605e

Reasons to consider the
AMD Athlon II X4 605e

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Much more l3 cache 0.5 MB vs 0 MB Compared to all cpus, 0.5 MB l3 cache is just OK
Higher Maximum operating temperature 72 °C vs 71 °C Almost the same

Benchmarks Real world tests of Athlon II X4 640 vs 605e

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 II X4 640
121,100 MB/s
Athlon II X4 605e
105.8 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon II X4 640  vs
605e 
Clock speed 3 GHz 2.3 GHz
Cores Quad core Quad core
Socket type
AM3
Is unlocked No 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 45W
Annual home energy cost 22.89 $/year 53.03 $/year
Annual commercial energy cost 83.22 $/year 120.63 $/year
Performance per watt 1.54 pt/W 0.64 pt/W
Typical power consumption 77.19W 130.78W

bus

Clock speed 2,000 MHz 2,000 MHz

details

Athlon II X4 640  vs
605e 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 0 MB 0.5 MB
L3 cache per core 0 MB/core 0.13 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 1.05 - 1.4V 0.78 - 1.25V
Operating temperature Unknown - 71°C Unknown - 72°C

overclocking

Overclocked clock speed 3.57 GHz 3.36 GHz
Overclocked clock speed (Water) 3.89 GHz 2.3 GHz
Overclocked clock speed (Air) 3.57 GHz 3.36 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 X4 640
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AMD Athlon II X4 605e
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