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Differences What are the advantages of each

Front view of Intel Pentium III 600B

Reasons to consider the
Intel Pentium III 600B

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Pentium B940

Reasons to consider the
Intel Pentium B940

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Much newer manufacturing process 32 nm vs 250 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 2 GHz vs 0.6 GHz More than 3.2x higher clock speed
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
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
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Newer Apr, 2011 vs Sep, 1999 Release date over 11 years later
More cores 2 vs 1 Twice as many cores; run more applications at once

Features Key features of the Pentium III 600B  vs B940 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Pentium III 600B  vs
B940 
Clock speed 0.6 GHz 2 GHz
Cores Single core Dual core

features

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

power consumption

TDP 34.5W 35W
Annual home energy cost 8.31 $/year 8.43 $/year
Annual commercial energy cost 30.22 $/year 30.66 $/year
Typical power consumption 28.03W 28.44W

details

Pentium III 600B  vs
B940 
Architecture x86 x86-64
Threads 1 2
L2 cache 0.5 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 250 nm 32 nm
Max CPUs 2 1
Clock multiplier 4 20
Operating temperature Unknown - 85°C Unknown - 85°C

integrated graphics

GPU None GPU
Label N/A HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,100 MHz

bus

Architecture FSB DMI
Number of links 1 1
Intel Pentium III 600B
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Intel Pentium B940
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