Rock3/CM3/vsCM4

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    ROCK 3 >  Compute Module >  Feature Comparison Table

Feature Comparison Table

Raspberry Pi CM4	Radxa CM3
Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz	Rockchip RK3566, Quad core Cortex-A55 (ARM v8) 64-bit SoC @ 2.0GHz
Small Footprint 55mm × 40mm × 4.7mm module	Small Footprint 55mm × 40mm × 4.7mm module
Options for 1GB, 2GB, 4GB or 8GB LPDDR4-3200 SDRAM with ECC	Options for 1GB, 2GB, 4GB or 8GB LPDDR4-3200 SDRAM with ECC
Options for 0GB (CM4Lite), 8GB, 16GB, or 32GB eMMC Flash memory, Peak eMMC bandwidth 100MBytes/s	Options for 0GB, 8GB, 16GB, 32GB, 64GB, 128GB eMMC Flash memory, Peak eMMC bandwidth 250MBytes/s
Option for WiFi5/BT5	Option for WiFi5/BT5
Gigabit Ethernet PHY supporting IEEE 1588	Gigabit Ethernet PHY(RTL8211F), optional IEEE 1588 support
1 × USB 2.0 port ( highspeed )	1 × USB 2.0 port ( highspeed ), 1 x USB 3.0 port (5Gbps)
1 × PCIe 1-lane Host, Gen 2 ( 5Gbps )	1 × PCIe 1-lane Host, Gen 2 ( 5Gbps )
N/A	2 x SATA ports, one shared with USB 3, one shared with PCIe
2 x HDMI 2.0(up to 4K60)	1 x HDMI(up to 4K60)
MIPI DSI: - 1 × 2-lane MIPI DSI display port - 1 × 4-lane MIPI DSI display port	MIPI DSI: - 2 × 4-lane MIPI DSI display port - 1 x 4-lane LVDS support(shared with 1 x MIPI)
	eDP: - 1 x eDP up to 4K60
MIPI CSI-2: - 1 × 2-lane MIPI CSI camera port - 1 × 4-lane MIPI CSI camera port	MIPI CSI-2: - 1 × 2-lane MIPI CSI camera port - 1 × 4-lane MIPI CSI camera port
1 × SDIO 2.0 (CM4Lite only)	1 x SDIO 3.0
N/A	Audio Codec
28 × GPIO supporting either 1.8v or 3.3v signalling and peripheral options: - Up to 5 × UART - Up to 5 × I2C - Up to 5 × SPI - 1 × SDIO interface - 1 × DPI (Parallel RGB Display) - 1 × PCM Up to - 2× PWM channels - Up to 3× GPCLK outputs	50 × GPIO supporting either 1.8v or 3.3v signalling and peripheral options: - Up to 8 × UART - Up to 8 × I2C - Up to 4 × SPI - 1 × SDIO interface - 1 × PCM - Up to 8 × PWM channels - 2 x ADC
Single +5v PSU input	Single +5v PSU input
2 x 100Pin B2B connector	3 x 100Pin B2B connector