Cast your vote Do you agree or disagree with CPUBoss?

Thanks for adding your opinion. Follow us on Facebook to stay up to date with the latest news!
VS

Differences What are the advantages of each

Front view of AMD Athlon X4 740

Reasons to consider the
AMD Athlon X4 740

Report a correction
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.2 GHz vs 3 GHz More than 5% higher clock speed
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 (Air) 4.21 GHz vs 3.57 GHz Around 20% better overclocked clock speed (Air)
Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Higher Maximum operating temperature 73 °C vs 71 °C Around 5% higher Maximum operating temperature
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
Newer Oct, 2012 vs May, 2010 Release date over 2 years later
Front view of AMD Athlon II X4 640

Reasons to consider the
AMD Athlon II X4 640

Report a correction
Much better overclocked clock speed (Water) 3.89 GHz vs 3 GHz Around 30% better overclocked clock speed (Water)

Benchmarks Real world tests of Athlon X4 740 vs II X4 640

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 X4 740
2,030,000 MB/s
Athlon II X4 640
121,100 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

Athlon X4 740  vs
II X4 640 
Clock speed 3.2 GHz 3 GHz
Cores Quad core Quad core
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
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
SSE4.2
CVT16
AMD-V
3DNow!
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 22.89 $/year
Annual commercial energy cost 56.94 $/year 83.22 $/year
Performance per watt 12.36 pt/W 1.54 pt/W
Typical power consumption 52.81W 77.19W

bus

Clock speed 2,000 MHz 2,000 MHz

details

Athlon X4 740  vs
II X4 640 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 4 MB 2 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Voltage range 0.82 - 1.48V 1.05 - 1.4V
Operating temperature Unknown - 73°C Unknown - 71°C

overclocking

Overclock popularity 13 36
Overclock review score 0 4.5
Overclocked clock speed 4.21 GHz 3.57 GHz
Overclocked clock speed (Water) 3 GHz 3.89 GHz
Overclocked clock speed (Air) 4.21 GHz 3.57 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 X4 740
Report a correction
AMD Athlon II X4 640
Report a correction

Read more

Comments

comments powered by Disqus