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Differences What are the advantages of each

Front view of Intel Core i5 3570K

Reasons to consider the
Intel Core i5 3570K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Higher clock speed 3.4 GHz vs 2.8 GHz More than 20% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Slightly higher turbo clock speed 3.8 GHz vs 3.6 GHz More than 5% higher turbo clock speed
Much better overclocked clock speed (Air) 4.59 GHz vs 2.8 GHz Around 65% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.71 GHz vs 2.8 GHz Around 70% better overclocked clock speed (Water)
More l3 cache per core 1.5 MB/core vs 1.33 MB/core Around 15% more l3 cache per core
Newer Apr, 2012 vs Nov, 2011 Release date 5 months later
Front view of AMD Opteron 4228 HE

Reasons to consider the
AMD Opteron 4228 HE

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 52.81W vs 107.5W 2x lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 4 2 more cores; run more applications at once
Much lower annual home energy cost 15.66 $/year vs 38.81 $/year 2.5x lower annual home energy cost
More threads 6 vs 4 2 more threads
Much lower annual commercial energy cost 56.94 $/year vs 106 $/year More than 45% lower annual commercial energy cost

Features Key features of the Core i5 3570K  vs Opteron 4228 HE 

clock speed

Core i5 3570K
3.4 GHz
Opteron 4228 HE
2.8 GHz

turbo clock speed

Core i5 3570K
3.8 GHz
Opteron 4228 HE
3.6 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i5 3570K
4.59 GHz
Opteron 4228 HE
2.8 GHz

overclocked clock speed (water)

Core i5 3570K
4.71 GHz
Opteron 4228 HE
2.8 GHz

Specifications Full list of technical specs

summary

Core i5 3570K  vs
Opteron 4228 HE 
Clock speed 3.4 GHz 2.8 GHz
Turbo clock speed 3.8 GHz 3.6 GHz
Cores Quad core Hexa core
Socket type
LGA 1155
C32
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
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES

power consumption

TDP 77W 65W
Annual home energy cost 38.81 $/year 15.66 $/year
Annual commercial energy cost 106 $/year 56.94 $/year
Typical power consumption 107.5W 52.81W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3

details

Core i5 3570K  vs
Opteron 4228 HE 
Threads 4 6
L2 cache 1 MB 6 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 6 MB 8 MB
L3 cache per core 1.5 MB/core 1.33 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 2
Clock multiplier 34 18
Operating temperature Unknown - 67.4°C Unknown - 68°C

overclocking

Overclocked clock speed 4.59 GHz 2.8 GHz
Overclocked clock speed (Water) 4.71 GHz 2.8 GHz
Overclocked clock speed (Air) 4.59 GHz 2.8 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4000 N/A
Latest DirectX 10.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

bus

Architecture DMI HyperTransport 3.0
Number of links 1 2
Transfer rate 5,000 MT/s 6,400 MT/s
Intel Core i5 3570K
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AMD Opteron 4228 HE
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