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Differences What are the advantages of each

Front view of Intel Pentium 4 661

Reasons to consider the
Intel Pentium 4 661

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CPUBoss is not aware of any important advantages of the 661 vs the 651.

Front view of Intel Pentium 4 651

Reasons to consider the
Intel Pentium 4 651

Report a correction

CPUBoss is not aware of any important advantages of the 651 vs the 661.

Features Key features of the Pentium 4 661  vs 651 

clock speed

Pentium 4 661
3.6 GHz
Pentium 4 651
3.4 GHz

L2 cache

overclocked clock speed (air)

Pentium 4 661
4.55 GHz
Pentium 4 651
4.72 GHz

overclocked clock speed (water)

Pentium 4 661
5.04 GHz
Pentium 4 651
5.41 GHz

Specifications Full list of technical specs

summary

Pentium 4 661  vs
651 
Clock speed 3.6 GHz 3.4 GHz
Cores Single core Single core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support No No
Instruction set extensions
MMX
SSE
SSE2
SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 86W 86W
Annual home energy cost 20.72 $/year 20.72 $/year
Annual commercial energy cost 75.34 $/year 75.34 $/year
Typical power consumption 69.88W 69.88W

memory controller

Memory controller Built-in Built-in
Supports ECC No No

details

Pentium 4 661  vs
651 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 65 nm 65 nm
Transistor count 188,000,000 188,000,000
Max CPUs 1 1
Clock multiplier 18 17
Voltage range 1.2 - 1.34V 1.2 - 1.34V
Operating temperature Unknown - 1°C Unknown - 69.2°C

overclocking

Overclocked clock speed 4.55 GHz 4.72 GHz
Overclocked clock speed (Water) 5.04 GHz 5.41 GHz
Overclocked clock speed (Air) 4.55 GHz 4.72 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

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 800 MHz
Intel Pentium 4 661
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Intel Pentium 4 651
Report a correction

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