You don't need two PC's to stream to be a successful streamer, but it does have 2 big advantages:
Issa 'Issa' Rahim was a professional Fortnite player. He quit playing Fortnite on 30th of November 2020 and left Ghost Gaming.
For gaming, Issa uses a Intel Core i9-9900K CPU with a EVGA GeForce RTX 2080 Ti GPU. He uses a MSI MPG Z390 Gaming PRO Carbon motherboard. Issa uses G.SKILL Trident Z RGB Series 32GB memory and a WD Blue 3D Nand 500GB SSD for storage.
For streaming, Issa uses a Intel Core i9-9900K CPU with a ASUS ROG Strix GeForce RTX 2080 GPU. He uses a MSI Mag Z390 Tomahawk motherboard. Issa uses CORSAIR Vengeance Lpx 16GB memory and a Samsung 860 EVO 500GB SSD for storage.