2GB RAM; 0GB (Lite) eMMC Flash without WIFI ^^ Upgraded processor BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC, more powerful performance ^^ More options for RAM (1GB/2GB/4GB/8GB), competent for large-scale data compilation ^^ Faster eMMC Flash storage, up to 100 MBytes/s data rate, which is four times faster than the CM3+ ^^ Option for fully certified radio module, the same one used on Pi4B, supports either PCB trace antenna or external antenna, more suitable for industrial applications