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Differences What are the advantages of each

Front view of Intel Core i7 3770K

Reasons to consider the
Intel Core i7 3770K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Much higher clock speed 3.5 GHz vs 1.8 GHz Around 95% higher clock speed
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 4.69 GHz vs 1.8 GHz More than 2.5x better overclocked clock speed (Air)
Higher Maximum operating temperature 67.4 °C vs 55 °C Around 25% higher Maximum operating temperature
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Much better overclocked clock speed (Water) 4.8 GHz vs 1.8 GHz Around 2.8x better overclocked clock speed (Water)
Newer Apr, 2012 vs Mar, 2010 Release date over 2 years later
Front view of AMD Opteron 6124 HE

Reasons to consider the
AMD Opteron 6124 HE

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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
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
Much lower typical power consumption 69.06W vs 114.97W Around 40% lower typical power consumption
More l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 8 vs 4 Twice as many cores; run more applications at once
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 20.48 $/year vs 42.19 $/year 2.1x lower annual home energy cost
Much lower annual commercial energy cost 74.46 $/year vs 112.39 $/year Around 35% lower annual commercial energy cost

Features Key features of the Core i7 3770K  vs Opteron 6124 HE 

clock speed

Core i7 3770K
3.5 GHz
Opteron 6124 HE
1.8 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i7 3770K
4.69 GHz
Opteron 6124 HE
1.8 GHz

overclocked clock speed (water)

Core i7 3770K
4.8 GHz
Opteron 6124 HE
1.8 GHz

Specifications Full list of technical specs

summary

Core i7 3770K  vs
Opteron 6124 HE 
Clock speed 3.5 GHz 1.8 GHz
Cores Quad core Octa core
Socket type
LGA 1155
G34
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES

power consumption

TDP 77W 85W
Annual home energy cost 42.19 $/year 20.48 $/year
Annual commercial energy cost 112.39 $/year 74.46 $/year
Typical power consumption 114.97W 69.06W

bus

Architecture DMI HyperTransport 3.0

details

Core i7 3770K  vs
Opteron 6124 HE 
Threads 8 8
L2 cache 1 MB 4 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 8 MB 12 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 4
Clock multiplier 35 9
Voltage range 1.33 - 1.36V 1 - UnknownV
Operating temperature Unknown - 67.4°C Unknown - 55°C

overclocking

Overclocked clock speed 4.69 GHz 1.8 GHz
Overclocked clock speed (Water) 4.8 GHz 1.8 GHz
Overclocked clock speed (Air) 4.69 GHz 1.8 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4000 N/A
Latest DirectX 11.x N/A
Number of displays supported 3 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,150 MHz N/A
3DMark06 5,339.9 N/A
Intel Core i7 3770K
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AMD Opteron 6124 HE
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