NanoPi Fire2A vs. NanoPi Fire3 vs. NanoPi Duo (256MB)

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NanoPi Fire2A  
FriendlyElec
NanoPi Fire3  
FriendlyElec
NanoPi Duo (256MB)  
FriendlyElec
Thumbnail for NanoPi Fire2A Thumbnail for NanoPi Fire3 Thumbnail for NanoPi Duo (256MB)
SoC Samsung S5P4418 Samsung S5P6818 AllWinner H2+
CPU ARM Cortex-A9 (32-bit)
1.4GHz quad core
ARM Cortex-A53 (64-bit)
1.4GHz octa core
ARM Cortex-A7 (32-bit)
1.2GHz quad core
GPU Mali-400 MPMali-400 MPMali-400 MP2 600MHz
RAM size 512MB1GB256MB
Built-in RAM
Internal storage
SD card MicroSD card slot
Max. size: 64GB
MicroSD card slot
Max. size: 64GB
MicroSD card slot
Max. size: 32GB
USB host 112
USB OTG
USB version 2.02.02.0 (via pin header)
Ethernet 1 port
Type: Gigabit
1 port
Type: Gigabit
1 port
Type: 10/100
Wake-on-Lan
HDMI
VGA
Composite video (CVBS)
Display interfaces 0.5 mm pitch SMT FPC seat, for full-color LCD (RGB: 8-8-8)0.5 mm pitch SMT FPC seat, for full-color LCD (RGB: 8-8-8)
Camera interfaces 11
Audio output
Audio connector Other connector
HDMI audio
SPDIF
I2S
Line input
Mic input
Onboard mic
SATA
IR sensor
WiFi 802.11b/g/n (Allwinner XR819)
Bluetooth
RTC
GPIO pins 404032
PWM pins 331
ADC pins
I2C 221
SPI 111
UART 332
RS232
Arduino pinout
Voltage 5V5V5V
Power consumption 1.1A - 2A1.1A - 2A300mA - 1.2A
Windows support
Android support Android 5.1.1Android 5.1.1
Size (mm) 75 x 40 x 1675 x 40 x 1650 x 26 x 3
Weight (g) ??7
Operating temperature -20 °C – 80 °C-20 °C – 80 °C-40 °C – 80 °C
Price $28$35$8


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