I stream on a dual pc setup, one handles the encoding and the other I use for gaming.
My Gaming PC:
RTX 4090 24GB / Ryzen 9 9950X / 96GB RAM
Monitors:
Main: Acer- Predator XB241YU 23.8" 2560X1440 165hz
Sides: 2x G2460PG AOC 24" 144hz
Streaming PC:
Alienware M15 R2:
Intel Core i7-9750H CPU
16 GB RAM DDR4 2666 MHz
NVIDIA GeForce RTX 2060 6 GB
Elgato HD60S Capture Card
Microphone: Shure SM7B + Cloudlifter + Scarlet Solo
Headphones: Steelseries Arctis Nova Pro Wireless
Keyboard: Redragon K556
Mouse: Logitech Pro Wireless
Controller: Dualshock 5
VR Headset: Valve Index