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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 2649M.

Front view of Intel Core i7 2649M

Reasons to consider the
Intel Core i7 2649M

Report a correction

CPUBoss is not aware of any important advantages of the 2649M vs the 620M.

Features Key features of the Core i7 620M  vs 2649M 

clock speed

Core i7 620M
2.66 GHz
Core i7 2649M
2.3 GHz

turbo clock speed

Core i7 620M
3.33 GHz
Core i7 2649M
3.2 GHz

L2 cache

gpu clock speed

Core i7 620M
500 MHz
Core i7 2649M
500 MHz

overclocked clock speed (air)

Core i7 620M
3.34 GHz
Core i7 2649M
2.3 GHz

overclocked clock speed (water)

Core i7 620M
2.67 GHz
Core i7 2649M
2.3 GHz

Specifications Full list of technical specs

summary

Core i7 620M  vs
2649M 
Clock speed 2.66 GHz 2.3 GHz
Turbo clock speed 3.33 GHz 3.2 GHz
Cores Dual core Dual core
Socket type
BGA 1288
BGA 1023
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
AVX
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
Typical power consumption 28.44W 20.31W

bus

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

details

Core i7 620M  vs
2649M 
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
Max CPUs 1 1
Clock multiplier 20 23

overclocking

Overclocked clock speed 3.34 GHz 2.3 GHz
Overclocked clock speed (Water) 2.67 GHz 2.3 GHz
Overclocked clock speed (Air) 3.34 GHz 2.3 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics 3000
Number of displays supported 2 2
GPU clock speed 500 MHz 500 MHz
Turbo clock speed 766 MHz 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 17,066.66 MB/s 21,333.32 MB/s
Maximum memory size 8,192 MB 8,202.24 MB
Intel Core i7 620M
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Intel Core i7 2649M
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