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Differences What are the advantages of each

Front view of Intel Core i7 620UE

Reasons to consider the
Intel Core i7 620UE

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More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Front view of Intel Core i5 4300U

Reasons to consider the
Intel Core i5 4300U

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Significantly higher clock speed 1.9 GHz vs 1.06 GHz Around 80% higher clock speed
Much better turbo clock speed 1,100 MHz vs 500 MHz Around 2.2x better turbo clock speed
Higher turbo clock speed 2.9 GHz vs 2.13 GHz More than 35% higher turbo clock speed
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 2.71 GHz vs 1.07 GHz More than 2.5x better overclocked clock speed (Air)
More number of displays supported 3 vs 2 1 more number of displays supported
Slightly higher GPU clock speed 200 MHz vs 166 MHz More than 20% higher GPU clock speed
Significantly better overclocked clock speed (Water) 1.9 GHz vs 1.07 GHz Around 80% better overclocked clock speed (Water)

Features Key features of the Core i7 620UE  vs i5 4300U 

clock speed

Core i7 620UE
1.06 GHz
Core i5 4300U
1.9 GHz

turbo clock speed

Core i7 620UE
2.13 GHz
Core i5 4300U
2.9 GHz

L2 cache

gpu clock speed

Core i7 620UE
166 MHz
Core i5 4300U
200 MHz

overclocked clock speed (air)

Core i7 620UE
1.07 GHz
Core i5 4300U
2.71 GHz

overclocked clock speed (water)

Core i7 620UE
1.07 GHz
Core i5 4300U
1.9 GHz

Specifications Full list of technical specs

summary

Core i7 620UE  vs
i5 4300U 
Clock speed 1.06 GHz 1.9 GHz
Turbo clock speed 2.13 GHz 2.9 GHz
Cores Dual core Dual core
Socket type
BGA 1288
BGA 1168
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 18W 15W
Annual home energy cost 4.34 $/year 3.61 $/year
Annual commercial energy cost 15.77 $/year 13.14 $/year
Typical power consumption 14.63W 12.19W

bus

Architecture DMI DMI 2.0
Number of links 1 1
Transfer rate 2,500 MT/s 5,000 MT/s

details

Core i7 620UE  vs
i5 4300U 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 4 MB 3 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Clock multiplier 8 19

overclocking

Overclocked clock speed 1.07 GHz 2.71 GHz
Overclocked clock speed (Water) 1.07 GHz 1.9 GHz
Overclocked clock speed (Air) 1.07 GHz 2.71 GHz

integrated graphics

GPU GPU GPU
Label Integrated HD 4400
Number of displays supported 2 3
GPU clock speed 166 MHz 200 MHz
Turbo clock speed 500 MHz 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3L-1333
LPDDR3-1333
DDR3
LPDDR3-1600
DDR3-800
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 12,800 MB/s 25,600 MB/s
Maximum memory size 9,000.96 MB 16,384 MB
Intel Core i7 620UE
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Intel Core i5 4300U
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