Late 2013 Thunderbolt bus
late 2013 mac pro.
have "up to" 20 gb/s x1 , 10gb/s x2 devices.
know if chain thunderbolt 2 device off thunderbolt 1 device, you'll thunderbolt 1 speeds.
question whether having both thunderbolt 1 , thunderbolt 2 device on same bus (i.e. - bus 1) (since there 2x thunderbolt ports on late 2013 mac pro thunderbolt bus 1) slow on bus down thunderbolt 1 speeds?
or can, example, port-1 of bus 1, communicate @ 20gb/s x1 , port-2 of bus 1 communicate @ 10gb/s x2?
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same tb controller more same "tb bus" (as apple appears use term).
pragmatically no in cases input/output in both directions, different reason limitation when daisy chaining.
tb ports not additive. 2 ports provisioned single controller share same inputs. if encoded pci-e data traffic if "all tb v2.0" chain in port 1 send data 20gb/s speeds, in/outbound data on other port eat same x4 pci-e v2 interface controller has host system. ( shared pci-e v2 interface , dp inputs being "tb bus". in sense yes... not thunderbolt data traffic issue. getting off tb network issue. )
if tb devices passing data 1 , not trying send 1 device (e.g., host computer) no there not slow down except transition v1 device.
same daisy chain. host <--> tb2-dev1 <--> tb2-dev2 <---> tb1-dev <---> tb2-dev3
in/out bound way out tb2-dev2 tb v2. tb1 device limits , else downstream tb v1 speeds.
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