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Differences What are the advantages of each

Front view of Intel Core i7 620M

Reasons to consider the
Intel Core i7 620M

Report a correction

CPUBoss is not aware of any important advantages of the 620M vs the 620LM.

Front view of Intel Core i7 620LM

Reasons to consider the
Intel Core i7 620LM

Report a correction

CPUBoss is not aware of any important advantages of the 620LM vs the 620M.

Benchmarks Real world tests of Core i7 620M vs 620LM

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 620M
1,530,000 MB/s
Core i7 620LM
962,800 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 620M  vs
620LM 
Clock speed 2.66 GHz 2 GHz
Turbo clock speed 3.33 GHz 2.8 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 35W 25W
Annual home energy cost 8.43 $/year 6.02 $/year
Performance per watt 17.77 pt/W 15.97 pt/W
Typical power consumption 28.44W 20.31W

bus

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

details

Core i7 620M  vs
620LM 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 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 20 15

overclocking

Overclocked clock speed 3.34 GHz 2 GHz
Overclocked clock speed (Water) 2.67 GHz 2 GHz
Overclocked clock speed (Air) 3.34 GHz 2 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 2
GPU clock speed 500 MHz 266 MHz
Turbo clock speed 766 MHz 566 MHz

memory controller

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