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Onion - Omega 2 vs NanoPi M4

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When comparing Onion - Omega 2 vs NanoPi M4, the Slant community recommends Onion - Omega 2 for most people. In the question“What are the best single-board computers?” Onion - Omega 2 is ranked 44th while NanoPi M4 is ranked 54th.

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What are the best single-board computers?

Onion - Omega 2

NanoPi M4

Pros

Pro
It's tiny

Pro
It has lots of shields available, including Arduino shield

Pro
6 core HexaCore, compact nvme extender, 4GB RAM

Pro
Open Source

Works with mainline Linux kernel and open source Mesa Panfrost drivers.

Pro
Many ports

4 x USB3
2 x USB2 available via pins
PCI-E available via pins

Pro
Fast

Rockchip 3399 with two fast A72 cores. Good heatsink limites throttling.

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Cons

Con
Not breadboard compatible

The board does not have the standard 2.54 mm pin spacing.

Con
Support issues

There have been long-lasting periods were everything grew stale, even when it was about fixing security issues etc. have given up on checking since it was frustrating.

Con
Expensive

It has less than 256MB of RAM.

Con
Bleeding edge...

To have mainline kernel requires a bit of tinkering (e.g. installing Armbian). Panfrost drivers for 3d acceleration are not mature and crash sometimes...