Audio interface: RME vs. a TB3 (today, on a mac)

i read the other thread, i saw the link with the graphs from gearslutz, posted in that thread here

it seems that at 64-128 samples buffer settings,
the differenz of better AIs is in the 1-2ms ballpark, one vs. the other.
But i can´t estimate where a Behringer UMC1820 (USB) would play here

in case i would go for a new AI in the 600-800€ ballpark,
would you tend to fork out more, 1000-1500€ and go with an RME - USB,
or would you go TB3 anyway ?

i have the Presonus quantum2626 on my radar.
I really would like to have 8 ins/outs, vs. just a stereo pair on a more expensive brand for example.

https://www.thomannmusic.ch/intl/presonus_quantum_2626.htm?sid=445359000c194b97247d2e75eef9725f&shp=eyJjb3VudHJ5IjoiZ2IiLCJjdXJyZW5jeSI6NywibGFuZ3VhZ2UiOjJ9&reload=1

my scenarios are mixed, money tight for the whole year,
so i´m quite unclear.

i started using my Bass again, i´ll get a Guitar soon,
and will use GP3 as my realtime AMP-stack + FX unit for that task.
so here are minimal RT Latencies a god send.

while i want to have 8 in/outs on the other side, to use my modular or grooveboxes or both.
where 2-3-4-5ms more or less would not play a role,
----> exept: if i can get the whole roundtrip latency down to something like 3-4ms.
thats the big ? in this whole question.

the quantum 2626 would be in reach in 1-2 months or so.
i personally think i should go by any means with a TB3 unit.

the RME-TB3 units are out of reach…so RME would mean: USB

i can´t estimate how much the RME factor counts on a mac ! …???
or if i should go TB3 anyway, but with a higher level, more xpensive one vs. the 600$ Quantum 626$

( i use M1 macs )

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dificult query i guess ? :wink:

…but probably just, cause we´re on a mac, hehe