summary	Celeron N2840	Atom Z3740
Clock speed	2.16 GHz	1.33 GHz
Turbo clock speed	2.58 GHz	1.86 GHz
Cores	Dual core	Quad 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	HD (Ivy Bridge)
GPU clock speed	311 MHz	311 MHz
Turbo clock speed	792 MHz	667 MHz
memory controller
Memory controller	Built-in	Built-in
Memory type
DDR3-1066
DDR3
DDR3L-1066
Channels	Dual Channel	Dual Channel
Supports ECC	No	No
Maximum bandwidth	12,800 MB/s	17,066.66 MB/s
Maximum memory size	8,192 MB	4,096 MB

details	Celeron N2840	Atom Z3740
Architecture	x86-64	x86-64
Threads	2	4
L2 cache	1 MB	2 MB
L2 cache per core	0.5 MB/core	0.5 MB/core
Manufacture process	22 nm	22 nm
Max CPUs	1	1
overclocking
Overclocked clock speed	2.58 GHz	1.55 GHz
Overclocked clock speed (Water)	2.17 GHz	1.33 GHz
Overclocked clock speed (Air)	2.58 GHz	1.55 GHz
power consumption
TDP	7.5W	2W
Annual home energy cost	1.81 $/year	0.48 $/year
Performance per watt	7.05 pt/W	73.77 pt/W
Typical power consumption	6.09W	1.63W
bus
Architecture	FSB	FSB
Number of links	1	1

Intel Celeron N2840 vs Atom Z3740

Cast your vote Do you agree or disagree with CPUBoss?