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Differences What are the advantages of each

Front view of Intel Core i7 990X

Reasons to consider the
Intel Core i7 990X

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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
Much higher clock speed 3.46 GHz vs 0.85 GHz More than 4x higher clock speed
Much more l2 cache 2 MB vs 0.06 MB More than 33.2x 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
Much better overclocked clock speed (Air) 4.58 GHz vs 1.26 GHz Around 3.8x better overclocked clock speed (Air)
More cores 6 vs 1 5 more cores; run more applications at once
More threads 12 vs 1 11 more threads
More l2 cache per core 0.33 MB/core vs 0.06 MB/core More than 5.5x more l2 cache per core
Much better overclocked clock speed (Water) 4.47 GHz vs 0.85 GHz More than 5.2x better overclocked clock speed (Water)
Front view of AMD Duron 850

Reasons to consider the
AMD Duron 850

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CPUBoss is not aware of any important advantages of the AMD Duron 850 vs the Intel Core i7 990X.

Features Key features of the Core i7 990X  vs Duron 850 

clock speed

Core i7 990X
3.46 GHz
Duron 850
0.85 GHz

L2 cache

Duron 850
0.06 MB

overclocked clock speed (air)

Core i7 990X
4.58 GHz
Duron 850
1.26 GHz

overclocked clock speed (water)

Core i7 990X
4.47 GHz
Duron 850
0.85 GHz

Specifications Full list of technical specs

summary

Core i7 990X  vs
Duron 850 
Clock speed 3.46 GHz 0.85 GHz
Cores Hexa core Single core
Socket type
LGA 1366
462

features

Has a NX bit Yes No
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

bus

Clock speed 3,200 MHz 200 MHz

details

Core i7 990X  vs
Duron 850 
Threads 12 1
L2 cache 2 MB 0.06 MB
L2 cache per core 0.33 MB/core 0.06 MB/core
Manufacture process 32 nm 180 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.58 GHz 1.26 GHz
Overclocked clock speed (Water) 4.47 GHz 0.85 GHz
Overclocked clock speed (Air) 4.58 GHz 1.26 GHz

power consumption

Typical power consumption 105.63W N/A
Intel Core i7 990X
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AMD Duron 850
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