Board Technical Specifications Comparison

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MediaTek LinkIt Smart 7688 duo vs. DFI CS551 vs. Raspberry Pi Foundation Raspberry Pi 4 Model B

	× LinkIt Smart 7688 duo	× CS551	× Raspberry Pi 4 Model B
Manufacturer	MediaTek	DFI	Raspberry Pi Foundation
Price	$ 16.0	-	$ 35.0
SoC	MediaTek MT7688AN	Intel 8th Generation Core Processors	Broadcom BCM2711B0
CPU	1× MIPS 24KEc @ 580 Mhz	8× x86 @ 3.6 Ghz	4× ARM Cortex-A72 @ 1.5 Ghz
GPU	-	-	VideoCore VI
RAM	-	32.0 GiB DDR4 with ECC	8.0 GiB LPDDR4 @ 3200MHz
eMMC	1 × soldered	-	-
SD	-	-	1 × bootable: True
USB	1 × host port	6 × host ports	5 × host ports 1 of which are Type-C
Ethernet	1× 10/100	1× 1 Gbps	1× 1 Gbps supports passive and active PoE
Wi-Fi	On-board Wi-Fi without external antenna 2.4Ghz b/g/n	-	On-board Wi-Fi without external antenna 2.4Ghz b/g/n/ax 5Ghz a/n/ac/ax
Bluetooth	-	-	onboard
Camera	-	-	up to 1 x inputs
Audio	1 × outputs 1 × I2S	1 × outputs 1 × mic-in	1 × outputs 1 × I2S
GPIO	27	8	26
PWM	8	-	4
I2C	1	-	2
SPI	1	1	2
UART	2	-	1
Pin header	-	-	HAT (Raspberry Pi)
Form factor	-	-	Raspberry Pi
Dimensions	61 mm x 26 mm x 13 mm	146 mm x 102 mm	85 mm x 56 mm x 20 mm
Temperature	-	-30.0°C - 80.0°C	0.0°C - 50.0°C
Software	Linux: True	Linux: True (mainline) Windows: 10 IoT Enterprise	Linux: True (mainline)