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Differences What are the advantages of each

Front view of Intel Pentium III 550E

Reasons to consider the
Intel Pentium III 550E

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Celeron 847

Reasons to consider the
Intel Celeron 847

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Much newer manufacturing process 32 nm vs 180 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Significantly more l2 cache 1 MB vs 0.25 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Higher clock speed 1.1 GHz vs 0.55 GHz 2x higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
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
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Newer Jun, 2011 vs Oct, 1999 Release date over 11 years later
Significantly higher Maximum operating temperature 100 °C vs 82 °C More than 20% higher Maximum operating temperature
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
More cores 2 vs 1 Twice as many cores; run more applications at once

Features Key features of the Pentium III 550E  vs Celeron 847 

clock speed

Pentium III 550E
0.55 GHz
Celeron 847
1.1 GHz

L2 cache

Specifications Full list of technical specs

summary

Pentium III 550E  vs
Celeron 847 
Clock speed 0.55 GHz 1.1 GHz
Cores Single core Dual core
Socket type
370
BGA 1023

features

Has a NX bit No Yes
Has virtualization support No Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling No Yes

bus

Architecture FSB DMI
Number of links 1 1

details

Pentium III 550E  vs
Celeron 847 
Architecture x86 x86-64
Threads 1 2
L2 cache 0.25 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 180 nm 32 nm
Max CPUs 2 1
Clock multiplier 5 11
Operating temperature Unknown - 82°C Unknown - 100°C

integrated graphics

GPU None GPU
Number of displays supported N/A 2
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 800 MHz

power consumption

TDP 14.5W 17W
Annual home energy cost 3.49 $/year 4.1 $/year
Annual commercial energy cost 12.7 $/year 14.89 $/year
Typical power consumption 11.78W 13.81W
Intel Pentium III 550E
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Intel Celeron 847
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