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Differences What are the advantages of each

Front view of Intel Core i5 3470

Reasons to consider the
Intel Core i5 3470

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Significantly higher clock speed 3.2 GHz vs 2.4 GHz Around 35% 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
Higher turbo clock speed 3.6 GHz vs 3.3 GHz Around 10% higher turbo clock speed
More l3 cache per core 1.5 MB/core vs 0.98 MB/core Around 55% more l3 cache per core
Lower typical power consumption 86.05W vs 93.44W Around 10% lower typical power consumption
Better overclocked clock speed (Air) 3.67 GHz vs 3.3 GHz More than 10% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.09 GHz vs 3.3 GHz Around 25% better overclocked clock speed (Water)
Lower annual commercial energy cost 84.62 $/year vs 100.74 $/year More than 15% lower annual commercial energy cost
Front view of AMD Opteron 6278

Reasons to consider the
AMD Opteron 6278

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Much more l2 cache 16 MB vs 1 MB 16x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly more l3 cache 15.63 MB vs 6 MB More than 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 16 vs 4 12 more cores; run more applications at once
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
More threads 16 vs 4 12 more threads
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Lower annual home energy cost 27.7 $/year vs 31.22 $/year More than 10% lower annual home energy cost

Features Key features of the Core i5 3470  vs Opteron 6278 

clock speed

Core i5 3470
3.2 GHz
Opteron 6278
2.4 GHz

turbo clock speed

Core i5 3470
3.6 GHz
Opteron 6278
3.3 GHz

L2 cache

L3 cache

Opteron 6278
15.63 MB

overclocked clock speed (air)

Core i5 3470
3.67 GHz
Opteron 6278
3.3 GHz

overclocked clock speed (water)

Core i5 3470
4.09 GHz
Opteron 6278
3.3 GHz

Specifications Full list of technical specs

summary

Core i5 3470  vs
Opteron 6278 
Clock speed 3.2 GHz 2.4 GHz
Turbo clock speed 3.6 GHz 3.3 GHz
Cores Quad core 16 core
Socket type
LGA 1155
G34
Is unlocked No 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
Supplemental SSE3
AES

power consumption

TDP 77W 115W
Annual home energy cost 31.22 $/year 27.7 $/year
Annual commercial energy cost 84.62 $/year 100.74 $/year
Typical power consumption 86.05W 93.44W

bus

Architecture DMI 2.0 HyperTransport 3.0
Number of links 1 4
Transfer rate 5,000 MT/s 6,400 MT/s

details

Core i5 3470  vs
Opteron 6278 
Threads 4 16
L2 cache 1 MB 16 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 6 MB 15.63 MB
L3 cache per core 1.5 MB/core 0.98 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 4
Clock multiplier 32 12
Operating temperature Unknown - 67.4°C Unknown - 69°C

overclocking

Overclocked clock speed 3.67 GHz 3.3 GHz
Overclocked clock speed (Water) 4.09 GHz 3.3 GHz
Overclocked clock speed (Air) 3.67 GHz 3.3 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 2500 N/A
Latest DirectX 11.0 N/A
Number of displays supported 3 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,100 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3
Intel Core i5 3470
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AMD Opteron 6278
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