4 ms·
The difference is the Radxa Taco board, which interfaces a CM4 directly with 5x SATA III slots, 1x native NVMe M.2 (2280), and 1x 2.5G NIC. Most typical Pi 'se
by geerlingguy 5y ago
The difference is the Radxa Taco board, which interfaces a CM4 directly with 5x SATA III slots, 1x native NVMe M.2 (2280), and 1x 2.5G NIC.
Most typical Pi 'server' builds slap all that IO on top of the Pi 4 model B's USB 3.0 bus.
- MisterTea 5y agoAnd the Pi4 SoC has only 1 pcie 2.0 lane so there's little to gain over USB 3.0 save for some latency.
- geerlingguy 5y agoIn my testing over the past year, almost everything gets a 5-20% speed boost by cutting out the USB 3.0 layer, except for large file sequential copies. It adds up, and is also more reliable and practical for things like ZFS.