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I believe the difference is the core module included, where (CM4 = Compute Module 4):

RPI-CM4 Lite: Raspberry Pi CM4 104000 lite (ARM Cortex-A72 quad-core, 4GB LPDDR4, WIFI 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless + Bluetooth 5.0, BLE)

A-06: A-06 Core module (ARM64-bit Dual-core Cortex-A72 + Quad-core Cortex-A53, Mali-T864, 4GB LPDDR4)

A-04: A-04 Core module (ARM64-bit Quad-core Cortex-A53, Mali-T720, 2GB DDR3)

R-01: R-01 Core module (RISC-V 64bit Single-core RV64IMAFDCVU @ 1.0GHz, No GPU, 1GB DDR3)



The actual SoCs used on each type of core module are somewhat well hidden (no mention on the main website as far as I can see) but can be found through a bit of research:

RPI-CM4 Lite: Broadcom BCM2711

A-06: Rockchip RK3399

A-04: Allwinner H6

R-01: Allwinner D1


Thanks. I wonder why they would hide it?


You can swap out the core modules as well, at least on their previous products.

Some of them require an adapter that you have to purchase separately.


Does this mean that only the CM4 version has wifi? What about the LTE support they mention on the front page?


Carrier board has some sort of ESP32-esque WiSoC, plus LTE daughter board is listed alongside the products. I can't find which exact SoC is being used though...




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