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Differences What are the advantages of each

Front view of Intel Core2 Duo E6305

Reasons to consider the
Intel Core2 Duo E6305

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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 more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Front view of Intel Core i3 3227U

Reasons to consider the
Intel Core i3 3227U

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Much newer manufacturing process 22 nm vs 65 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 lower typical power consumption 13.81W vs 52.81W 3.8x lower typical power consumption
More threads 4 vs 2 Twice as many threads
Much lower annual home energy cost 4.1 $/year vs 15.66 $/year 3.8x lower annual home energy cost
Much lower annual commercial energy cost 14.89 $/year vs 56.94 $/year 3.8x lower annual commercial energy cost
Better overclocked clock speed (Air) 1.9 GHz vs 1.6 GHz Around 20% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 1.9 GHz vs 1.6 GHz Around 20% better overclocked clock speed (Water)

Features Key features of the Core2 Duo E6305  vs Core i3 3227U 

clock speed

Core2 Duo E6305
1.86 GHz
Core i3 3227U
1.9 GHz

L2 cache

overclocked clock speed (air)

Core2 Duo E6305
1.6 GHz
Core i3 3227U
1.9 GHz

overclocked clock speed (water)

Core2 Duo E6305
1.6 GHz
Core i3 3227U
1.9 GHz

Specifications Full list of technical specs

summary

Core2 Duo E6305  vs
Core i3 3227U 
Clock speed 1.86 GHz 1.9 GHz
Cores Dual core Dual core
Socket type
LGA 771
BGA 1023

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 17W
Annual home energy cost 15.66 $/year 4.1 $/year
Annual commercial energy cost 56.94 $/year 14.89 $/year
Typical power consumption 52.81W 13.81W

details

Core2 Duo E6305  vs
Core i3 3227U 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 65 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.6 GHz 1.9 GHz
Overclocked clock speed (Water) 1.6 GHz 1.9 GHz
Overclocked clock speed (Air) 1.6 GHz 1.9 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4000
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,100 MHz

bus

Architecture FSB DMI
Number of links 1 1
Intel Core2 Duo E6305
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Intel Core i3 3227U
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