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Differences What are the advantages of each

Front view of Intel Pentium 4 651

Reasons to consider the
Intel Pentium 4 651

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Much higher clock speed 3.4 GHz vs 1.3 GHz More than 2.5x higher clock speed
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.72 GHz vs 3.2 GHz More than 45% better overclocked clock speed (Air)
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
More threads 2 vs 1 Twice as many threads
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Much better overclocked clock speed (Water) 5.41 GHz vs 3.2 GHz Around 70% better overclocked clock speed (Water)
Higher Maximum operating temperature 69.2 °C vs 67 °C Around 5% higher Maximum operating temperature
Newer Apr, 2006 vs Jun, 2005 Release date 9 months later
Front view of Intel Celeron D 350

Reasons to consider the
Intel Celeron D 350

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Much lower typical power consumption 17.06W vs 69.88W 4.1x lower typical power consumption
Much lower annual home energy cost 5.06 $/year vs 20.72 $/year 4.1x lower annual home energy cost
Much lower annual commercial energy cost 18.4 $/year vs 75.34 $/year 4.1x lower annual commercial energy cost

Features Key features of the Pentium 4 651  vs Celeron D 350 

clock speed

Pentium 4 651
3.4 GHz
Celeron D 350
1.3 GHz

L2 cache

overclocked clock speed (air)

Pentium 4 651
4.72 GHz
Celeron D 350
3.2 GHz

overclocked clock speed (water)

Pentium 4 651
5.41 GHz
Celeron D 350
3.2 GHz

Specifications Full list of technical specs

summary

Pentium 4 651  vs
Celeron D 350 
Clock speed 3.4 GHz 1.3 GHz
Cores Single core Single core
Socket type
LGA 775
478
479

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 No

power consumption

TDP 86W 21W
Annual home energy cost 20.72 $/year 5.06 $/year
Annual commercial energy cost 75.34 $/year 18.4 $/year
Typical power consumption 69.88W 17.06W

memory controller

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

details

Pentium 4 651  vs
Celeron D 350 
Architecture x86-64 x86
Threads 2 1
L2 cache 2 MB 1 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Transistor count 188,000,000 144,000,000
Max CPUs 1 1
Clock multiplier 17 24
Voltage range 1.2 - 1.34V 1.25 - 1.4V
Operating temperature Unknown - 69.2°C Unknown - 67°C

overclocking

Overclocked clock speed 4.72 GHz 3.2 GHz
Overclocked clock speed (Water) 5.41 GHz 3.2 GHz
Overclocked clock speed (Air) 4.72 GHz 3.2 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 400 MHz
Intel Pentium 4 651
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Intel Celeron D 350
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