RX 580 4GB Vs. RX 580 8GB | Stock and Overclock | New Games Benchmarks - YouTube
GTA 5 Teste RX 580 8gb No Ultra MSAA x8 1080p | Ryzen 5 2600 OC 4.1Ghz | 16gb de RAM #3 - YouTube
Is GTA 5 still the most graphically demanding game ever? There is no test that runs it even 1080p 60 fps at ultra settings (with any video card). - Quora
Grand Theft Auto V System Requirements | System Requirements