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

Differences What are the advantages of each

Front view of Intel Core i7 640LM

Reasons to consider the
Intel Core i7 640LM

Report a correction

CPUBoss is not aware of any important advantages of the Core i7 640LM vs the Celeron N2840.

Front view of Intel Celeron N2840

Reasons to consider the
Intel Celeron N2840

Report a correction

CPUBoss is not aware of any important advantages of the Celeron N2840 vs the Core i7 640LM.

Benchmarks Real world tests of Core i7 640LM vs Celeron N2840

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 640LM
1,300,000 MB/s
Celeron N2840
60,300 MB/s

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 640LM  vs
Celeron N2840 
Clock speed 2.13 GHz 2.16 GHz
Turbo clock speed 2.93 GHz 2.58 GHz
Cores Dual core Dual core
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Supports dynamic frequency scaling Yes Yes

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
Number of displays supported 2 2
GPU clock speed 266 MHz 311 MHz
Turbo clock speed 566 MHz 792 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 12,800 MB/s
Maximum memory size 8,192 MB 8,192 MB

details

Core i7 640LM  vs
Celeron N2840 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.8 GHz 2.58 GHz
Overclocked clock speed (Water) 2.13 GHz 2.17 GHz
Overclocked clock speed (Air) 2.8 GHz 2.58 GHz

power consumption

TDP 25W 7.5W
Annual home energy cost 6.02 $/year 1.81 $/year
Performance per watt 21.08 pt/W 7.05 pt/W
Typical power consumption 20.31W 6.09W

bus

Architecture DMI FSB
Number of links 1 1
Intel Core i7 640LM
Report a correction
Intel Celeron N2840
Report a correction

Comments

comments powered by Disqus