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Differences What are the advantages of each

Front view of Intel Core i7 6700K

Reasons to consider the
Intel Core i7 6700K

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Much higher turbo clock speed 4.2 GHz vs 0 GHz Compared to all cpus, 4.2 GHz turbo clock speed is just OK
Much higher clock speed 4 GHz vs 1.9 GHz More than 2x higher clock speed
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much newer manufacturing process 14 nm vs 28 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l3 cache 8 MB vs None Compared to all cpus, 8 MB l3 cache is just OK
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
More threads 8 vs 4 Twice as many threads
Front view of AMD Opteron X2100 Series X2150

Reasons to consider the
AMD Opteron X2100 Series X2150

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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
Much lower typical power consumption 17.88W vs 73.94W 4.1x lower typical power consumption
Significantly higher GPU clock speed 600 MHz vs 350 MHz More than 70% higher GPU clock speed
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual home energy cost 5.3 $/year vs 21.92 $/year 4.1x lower annual home energy cost
Much lower annual commercial energy cost 19.27 $/year vs 79.72 $/year 4.1x lower annual commercial energy cost

Features Key features of the Core i7 6700K  vs Opteron X2100 Series X2150 

clock speed

turbo clock speed

gpu clock speed

Specifications Full list of technical specs

summary

Core i7 6700K  vs
Opteron X2100 Series X2150 
Clock speed 4 GHz 1.9 GHz
Turbo clock speed 4.2 GHz 0 GHz
Cores Quad core Quad core
Is unlocked Yes No

features

Has virtualization support Yes No

power consumption

TDP 91W 22W
Annual home energy cost 21.92 $/year 5.3 $/year
Annual commercial energy cost 79.72 $/year 19.27 $/year
Typical power consumption 73.94W 17.88W

details

Core i7 6700K  vs
Opteron X2100 Series X2150 
Threads 8 4
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB None
Manufacture process 14 nm 28 nm

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 530 Radeon™ HD 8400
GPU clock speed 350 MHz 600 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Intel Core i7 6700K
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AMD Opteron X2100 Series X2150
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