summary	Atom N570	N455
Clock speed	1.66 GHz	1.66 GHz
Cores	Dual core	Single core
features
Has a NX bit	Yes	Yes
Supports trusted computing	No	No
Has virtualization support	No	No
Instruction set extensions
SSE2
MMX
SSE3
SSE
Supplemental SSE3
Supports dynamic frequency scaling	Yes	Yes
power consumption
TDP	8.5W	6.5W
Annual home energy cost	2.05 $/year	1.57 $/year
Performance per watt	3.62 pt/W	3.88 pt/W
Typical power consumption	6.91W	5.28W
bus
Architecture	DMI	DMI
Number of links	1	1
Transfer rate	2,500 MT/s	2,500 MT/s

details	Atom N570	N455
Architecture	x86-64	x86-64
Threads	4	2
L2 cache	1 MB	0.5 MB
L2 cache per core	0.5 MB/core	0.5 MB/core
Manufacture process	45 nm	45 nm
Transistor count	176,000,000	123,000,000
Max CPUs	1	1
overclocking
Overclocked clock speed	1.82 GHz	1.88 GHz
Overclocked clock speed (Water)	1.67 GHz	1.67 GHz
Overclocked clock speed (Air)	1.82 GHz	1.88 GHz
integrated graphics
GPU	GPU	GPU
Label	Integrated	Integrated
GPU clock speed	200 MHz	200 MHz
memory controller
Memory controller	Built-in	Built-in
Memory type
DDR3
DDR2
Channels	Single Channel	Single Channel
Maximum bandwidth	6,400 MB/s	3,200 MB/s
Maximum memory size	2,048 MB	2,048 MB

Intel Atom N570 vs N455

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