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Differences What are the advantages of each

Front view of AMD Phenom II P840

Reasons to consider the
AMD Phenom II P840

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CPUBoss is not aware of any important advantages of the P840 vs the P650.

Front view of AMD Phenom II P650

Reasons to consider the
AMD Phenom II P650

Report a correction

CPUBoss is not aware of any important advantages of the P650 vs the P840.

Benchmarks Real world tests of Phenom II P840 vs P650

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

Phenom II P840
76,000 MB/s
Phenom II P650
102.5 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II P840  vs
P650 
Clock speed 1.9 GHz 2.6 GHz
Cores Tri core Dual core
Socket type
S1
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 35W 25W
Annual home energy cost 8.43 $/year 6.02 $/year
Performance per watt 2.3 pt/W 2.66 pt/W
Typical power consumption 28.44W 20.31W

details

Phenom II P840  vs
P650 
Architecture x86-64 x86-64
Threads 3 2
L2 cache 2 MB 2 MB
L2 cache per core 0.67 MB/core 1 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.9 GHz 2.6 GHz
Overclocked clock speed (Water) 1.9 GHz 2.6 GHz
Overclocked clock speed (Air) 1.9 GHz 2.6 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

bus

Clock speed 1,800 MHz 1,800 MHz
AMD Phenom II P840
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AMD Phenom II P650
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