> So for you is it the best choice for producing and mixing sound, radio mix tv show etc...No music or mastring or recording
I would still recommend taking a device with TotalMix FX as a digital mixer.
So that you have a certain flexibility in terms of signal routing.
What's unclear to me, what devices you want to connect? Mics, headphones, …?
> so i need, powerful dsp for plug ins
Some RME units have built-in FX, but this is more something to give a vocalist reverb when singing in.
If you need high-quality FX, then you need to use VST/VSTi, which run on your PC in the DAW.
There you have also higher scalability in terms of computing power.
If you look at UAD .. there you see how lame (slow) DSPs can be and that you would require plenty of their cards to be able to run several instances of DSP hungry FX. I think therefore their approach to go "native" .. plugins that do not require DSPs but use the CPU of the PC where we have a lot of CPU power and high numbers of cores with an also high single thread performance which is also needed.
Maybe this question, to iron out your demand: what is the key reason for you to consider getting a recording interface and not a PC consumer sound card? If you could answer this one it would be easier to get your expectations and demand.
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub14