Cast your vote Do you agree or disagree with CPUBoss?

Thanks for adding your opinion. Follow us on Facebook to stay up to date with the latest news!
VS

Intel Core i7 840QM

Front view of Intel Core i7 840QM
Front view of Intel Core i7 720QM

Intel Core i7 720QM

Join the discussion

Differences What are the advantages of each

Front view of Intel Core i7 840QM

Reasons to consider the
Intel Core i7 840QM

Report a correction

CPUBoss is not aware of any important advantages of the 840QM vs the 720QM.
Front view of Intel Core i7 720QM

Reasons to consider the
Intel Core i7 720QM

Report a correction

CPUBoss is not aware of any important advantages of the 720QM vs the 840QM.

Benchmarks Real world tests of Core i7 840QM vs 720QM

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 840QM
5,046
Core i7 720QM
4,379

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 840QM
1,892
Core i7 720QM
1,543

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 840QM
129,300 MB/s
Core i7 720QM
105,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 840QM
4,781
Core i7 720QM
4,189

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 840QM
5,579
Core i7 720QM
4,842

GeekBench

Core i7 840QM
6,561
Core i7 720QM
5,786

PassMark Data courtesy Passmark

Core i7 840QM
3,419
Core i7 720QM
3,029

PassMark (Single Core)

Core i7 840QM
1,007
Core i7 720QM
872

Specifications Full list of technical specs

summary

 Core i7 840QM  vs
720QM 
Clock speed 1.86 GHz 1.6 GHz
Turbo clock speed 3.2 GHz 2.8 GHz
Cores Quad core Quad core
Socket type
rPGA 988A
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
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 45W 45W
Annual home energy cost 10.84 $/year 10.84 $/year
Performance per watt 3.37 pt/W 2.85 pt/W
Typical power consumption 36.56W 36.56W

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

details

 Core i7 840QM  vs
720QM 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 45 nm 45 nm
Transistor count 774,000,000 774,000,000
Max CPUs 1 1
Clock multiplier 14 12

overclocking
Overclocked clock speed 3.06 GHz 2.52 GHz
Overclocked clock speed (Water) 1.87 GHz 1.6 GHz
Overclocked clock speed (Air) 3.06 GHz 2.52 GHz

integrated graphics
GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 8,192 MB 8,192 MB
Intel Core i7 840QM
Report a correction
Intel Core i7 720QM
Report a correction

Read more

Comments

Showing 1 comment.
Thomas Maher (04:02 PM, August 20, 2017)
will jsut overclocking the i7 720qm give same performance as intel i7 840qm?
comments powered by Disqus

features

information

  • terms and privacy
  • about
  • blog

on the web

CPUBoss