I play GTA Online on the Playstation and currently have a lot of MBit. Since I'm moving now and want to spend as little as possible on my new internet contract, it would be cool if GTA Online runs smoothly and smoothly for you, to tell me your MBit or if you have any idea how much you should at least have.
With about 700kb, it runs smoothly for me when I use the bandwidth for other things.
That is not the point. It is easily playable under 1mb. The most important is the ping (latency.).
With 16Mbit it ran without any problems on the Xbox360, but I would use at least 50Mbit simply because of the download times.
Even a 10 Mbit / s tariff would be more than sufficient for this.
What you still have to consider are possible download times for updates or similar.
What is it or do I have any influence on it when concluding an internet contract?
Actually not, it depends a lot on the line (fiber optics, cables, etc.) and on the sources of interference in the vicinity (apartment block with many routers, etc.) or look higher.