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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
Lower typical power consumption 14.63W vs 28.44W Around 50% lower typical power consumption
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Lower annual home energy cost 4.34 $/year vs 8.43 $/year Around 50% lower annual home energy cost
Lower annual commercial energy cost 15.77 $/year vs 30.66 $/year Around 50% lower annual commercial energy cost
Front view of Intel Core i7 620M

Reasons to consider the
Intel Core i7 620M

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Much higher clock speed 2.66 GHz vs 1.06 GHz More than 2.5x higher clock speed
Significantly higher turbo clock speed 3.33 GHz vs 2.13 GHz More than 55% higher turbo clock speed
Much higher GPU clock speed 500 MHz vs 166 MHz More than 3x higher GPU clock speed
Much better turbo clock speed 766 MHz vs 500 MHz Around 55% better turbo clock speed
Much better overclocked clock speed (Air) 3.34 GHz vs 1.07 GHz Around 3.2x better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 2.67 GHz vs 1.07 GHz Around 2.5x better overclocked clock speed (Water)

Features Key features of the Core i7 620UE  vs 620M 

clock speed

Core i7 620UE
1.06 GHz
Core i7 620M
2.66 GHz

turbo clock speed

Core i7 620UE
2.13 GHz
Core i7 620M
3.33 GHz

L2 cache

gpu clock speed

Core i7 620UE
166 MHz
Core i7 620M
500 MHz

overclocked clock speed (air)

Core i7 620UE
1.07 GHz
Core i7 620M
3.34 GHz

overclocked clock speed (water)

Core i7 620UE
1.07 GHz
Core i7 620M
2.67 GHz

Specifications Full list of technical specs

summary

Core i7 620UE  vs
620M 
Clock speed 1.06 GHz 2.66 GHz
Turbo clock speed 2.13 GHz 3.33 GHz
Cores Dual core Dual core
Socket type
BGA 1288
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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 18W 35W
Annual home energy cost 4.34 $/year 8.43 $/year
Annual commercial energy cost 15.77 $/year 30.66 $/year
Typical power consumption 14.63W 28.44W

bus

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

details

Core i7 620UE  vs
620M 
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 4 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Transistor count 382,000,000 382,000,000
Max CPUs 1 1
Clock multiplier 8 20

overclocking

Overclocked clock speed 1.07 GHz 3.34 GHz
Overclocked clock speed (Water) 1.07 GHz 2.67 GHz
Overclocked clock speed (Air) 1.07 GHz 3.34 GHz

integrated graphics

GPU GPU GPU
Label Integrated Intel® HD Graphics
Number of displays supported 2 2
GPU clock speed 166 MHz 500 MHz
Turbo clock speed 500 MHz 766 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3-800
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 12,800 MB/s 17,066.66 MB/s
Maximum memory size 9,000.96 MB 8,192 MB
Intel Core i7 620UE
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Intel Core i7 620M
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