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Differences What are the advantages of each

Front view of Intel Pentium 987

Reasons to consider the
Intel Pentium 987

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Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 13.81W vs 101.56W 7.4x lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 63 °C Around 60% higher Maximum operating temperature
Newer Jul, 2012 vs Nov, 2006 Release date over 5 years later
Much lower annual home energy cost 4.1 $/year vs 30.11 $/year 7.4x lower annual home energy cost
Much lower annual commercial energy cost 14.89 $/year vs 109.5 $/year 7.4x lower annual commercial energy cost
Front view of AMD Athlon 64 FX 70

Reasons to consider the
AMD Athlon 64 FX 70

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Significantly higher clock speed 2.6 GHz vs 1.5 GHz Around 75% higher clock speed
Significantly 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
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Air) 2.99 GHz vs 1.5 GHz Around 2x better overclocked clock speed (Air)
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Significantly better overclocked clock speed (Water) 2.6 GHz vs 1.5 GHz Around 75% better overclocked clock speed (Water)

Features Key features of the Pentium 987  vs Athlon 64 FX 70 

clock speed

Pentium 987
1.5 GHz
Athlon 64 FX 70
2.6 GHz

L2 cache

overclocked clock speed (air)

Pentium 987
1.5 GHz
Athlon 64 FX 70
2.99 GHz

overclocked clock speed (water)

Pentium 987
1.5 GHz
Athlon 64 FX 70
2.6 GHz

Specifications Full list of technical specs

summary

Pentium 987  vs
Athlon 64 FX 70 
Clock speed 1.5 GHz 2.6 GHz
Cores Dual core Dual core
Socket type
BGA 1023
F

features

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

details

Pentium 987  vs
Athlon 64 FX 70 
Threads 2 2
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Operating temperature Unknown - 100°C Unknown - 63°C

overclocking

Overclocked clock speed 1.5 GHz 2.99 GHz
Overclocked clock speed (Water) 1.5 GHz 2.6 GHz
Overclocked clock speed (Air) 1.5 GHz 2.99 GHz

power consumption

TDP 17W 125W
Annual home energy cost 4.1 $/year 30.11 $/year
Annual commercial energy cost 14.89 $/year 109.5 $/year
Typical power consumption 13.81W 101.56W
Intel Pentium 987
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AMD Athlon 64 FX 70
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