About pc build?

With my current PC I get around 100-120fps ingame in Fortnite and around 122-160fps in creative. But when I stream it often lags and fps is even worse.

I wanted to ask what should I buy so that Fortnite runs ingame at 240fps while streaming?

Change your settings when recording.

For 240 FPS and streaming it should be a Ryzen 7 5800X and a 3070 if you want to have good settings.

But I have already seen pc builds on YT that even have a worse graphics card than mine but Fortnite runs at even 300fps

Yes, but it certainly had low settings so everything was down and not streamed.

The RTX 2060 has a chip that is only there for encoding video material. If you stream with OBS you should have the settings so that the output is not encoded by the processor. There are also many videos on how you can optimize OBS. I have a Ryzen 5 3600 and a GTX 1660 Super and can stream at 720 @ 60 FPS without any problems.

https://pcpartpicker.com/list/yWmJcY

Hmm then I don't know anymore sorry.

So if I buy what you said you leave the rest as it is then do icj 240fps?

You play in WQHD and not in FullHD.

Then this could just work. Just have a look on Youtube.

But why necessarily 240FPS.