Number of thunderbolt 4 controllers
Is there one separate bus controller for each of the 3 thunderbolt 4 ports in the M4 Mac Mini?
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The M4 chip presentation implies each port is independent, there is no hub logic you often see in PCI based systems. Now how the chip handles the data movement between the ports is an unknown! I suspect it's direct feeds.
On back (M4):
- Gigabit Ethernet port (configurable to 10Gb Ethernet)
- HDMI port
Three Thunderbolt 4 (USB-C) ports with support for:
- Thunderbolt 4 (up to 40Gb/s)
- USB 4 (up to 40Gb/s)
- DisplayPort
On back (M4 Pro):
- Gigabit Ethernet port (configurable to 10Gb Ethernet)
- HDMI port
Three Thunderbolt 5 (USB-C) ports with support for:
- Thunderbolt 5 (up to 120Gb/s)
- USB 4 (up to 40Gb/s)
- DisplayPort
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YES, absolutely, 3 independent buses.
For your information, I have a Mac mini M4 Pro.
