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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
Much higher Maximum operating temperature 85 °C vs 74 °C Around 15% higher Maximum operating temperature
Much lower typical power consumption 28.03W vs 52.81W More than 45% lower typical power consumption
Much lower annual home energy cost 8.31 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Much lower annual commercial energy cost 30.22 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost
Front view of AMD Athlon II X2 250

Reasons to consider the
AMD Athlon II X2 250

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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 3 GHz vs 0.6 GHz 5x higher clock speed
Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
More cores 2 vs 1 Twice as many cores; run more applications at once
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
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
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Newer Jun, 2009 vs Sep, 1999 Release date over 9 years later

Features Key features of the Pentium III 600B  vs Athlon II X2 250 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Pentium III 600B  vs
Athlon II X2 250 
Clock speed 0.6 GHz 3 GHz
Cores Single core Dual core

features

Has a NX bit No Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
BMI1
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
ABM
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling No Yes

power consumption

TDP 34.5W 65W
Annual home energy cost 8.31 $/year 15.66 $/year
Annual commercial energy cost 30.22 $/year 56.94 $/year
Typical power consumption 28.03W 52.81W

details

Pentium III 600B  vs
Athlon II X2 250 
Architecture x86 x86-64
Threads 1 2
L2 cache 0.5 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 250 nm 32 nm
Max CPUs 2 1
Operating temperature Unknown - 85°C Unknown - 74°C

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 133 MHz 2,000 MHz
Intel Pentium III 600B
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AMD Athlon II X2 250
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