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Differences What are the advantages of each

Front view of Intel Core i7 2600K

Reasons to consider the
Intel Core i7 2600K

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Much higher turbo clock speed 3.8 GHz vs 0 GHz Compared to all cpus, 3.8 GHz turbo clock speed is just OK
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much better overclocked clock speed (Air) 5.05 GHz vs 3.5 GHz Around 45% better overclocked clock speed (Air)
More threads 8 vs 4 Twice as many threads
Significantly better overclocked clock speed (Water) 4.76 GHz vs 3.5 GHz More than 35% better overclocked clock speed (Water)
Front view of AMD Opteron 6308

Reasons to consider the
AMD Opteron 6308

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More l3 cache 16 MB vs 8 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l3 cache per core 4 MB/core vs 2 MB/core 2x more l3 cache per core
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Significantly lower typical power consumption 93.44W vs 114.2W Around 20% lower typical power consumption
Much lower annual home energy cost 27.7 $/year vs 41.8 $/year Around 35% lower annual home energy cost
Lower annual commercial energy cost 100.74 $/year vs 111.78 $/year Around 10% lower annual commercial energy cost

Features Key features of the Core i7 2600K  vs Opteron 6308 

clock speed

Core i7 2600K
3.4 GHz
Opteron 6308
3.5 GHz

turbo clock speed

Core i7 2600K
3.8 GHz
Opteron 6308
0 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i7 2600K
5.05 GHz
Opteron 6308
3.5 GHz

overclocked clock speed (water)

Core i7 2600K
4.76 GHz
Opteron 6308
3.5 GHz

Specifications Full list of technical specs

summary

Core i7 2600K  vs
Opteron 6308 
Clock speed 3.4 GHz 3.5 GHz
Turbo clock speed 3.8 GHz 0 GHz
Cores Quad core Quad core
Is unlocked Yes No

features

Has virtualization support Yes Yes

power consumption

TDP 95W 115W
Annual home energy cost 41.8 $/year 27.7 $/year
Annual commercial energy cost 111.78 $/year 100.74 $/year
Typical power consumption 114.2W 93.44W

details

Core i7 2600K  vs
Opteron 6308 
Threads 8 4
L2 cache 1 MB 4 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 8 MB 16 MB
L3 cache per core 2 MB/core 4 MB/core
Manufacture process 32 nm 32 nm
Operating temperature Unknown - 72.6°C Unknown - 74.4°C

overclocking

Overclocked clock speed 5.05 GHz 3.5 GHz
Overclocked clock speed (Water) 4.76 GHz 3.5 GHz
Overclocked clock speed (Air) 5.05 GHz 3.5 GHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Intel Core i7 2600K
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AMD Opteron 6308
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