summary	Core i3 4020Y	Atom Z3775
Clock speed	1.5 GHz	1.47 GHz
Cores	Dual core	Quad core
Is unlocked	No	No
features
Has a NX bit	Yes	Yes
Supports trusted computing	No	No
Has virtualization support	Yes	Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling	Yes	Yes
power consumption
TDP	11.5W	2W
Annual home energy cost	2.77 $/year	0.48 $/year
Performance per watt	47.56 pt/W	90.91 pt/W
Typical power consumption	9.34W	1.63W
bus
Architecture	DMI 2.0	FSB
Number of links	1	1

details	Core i3 4020Y	Atom Z3775
Architecture	x86-64	x86-64
Threads	4	4
L2 cache	0.5 MB	2 MB
L2 cache per core	0.25 MB/core	0.5 MB/core
Manufacture process	22 nm	22 nm
Max CPUs	1	1
overclocking
Overclocked clock speed	1.5 GHz	2.27 GHz
Overclocked clock speed (Water)	1.5 GHz	1.47 GHz
Overclocked clock speed (Air)	1.5 GHz	2.27 GHz
integrated graphics
GPU	GPU	GPU
Label	Intel® HD Graphics 4200	Intel® HD Graphics
GPU clock speed	200 MHz	311 MHz
Turbo clock speed	850 MHz	667 MHz
memory controller
Memory controller	Built-in	Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
Channels	Dual Channel	Dual Channel
Supports ECC	No	No
Maximum bandwidth	25,600 MB/s	17,066.66 MB/s
Maximum memory size	16,384 MB	4,096 MB

Intel Core i3 4020Y vs Atom Z3775

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