Included at the bottom is a link Notebookcheck did with a variant of this laptop with the 1650 GPU and it put in respectable numbers, and notes the 1660Ti variant, which this is, can expect up to 60% more performance.
Being a more budget variant of the series, It has an empty RAM slot so you can add 8GB more RAM, and a vacant 2.5mm slot so you can add another SSD or HDD, so you're talking easily under $100 to add in a 512GB SSD and 8GB RAM, and according to Notebookcheck it's easy to service.
https://www.walmart.com/ip/ASUS-TUF-15-6-Full-HD-Gaming-Laptop-AMD-Ryzen-7-R7-3750H-GeForce-GTX-1660-Ti-8GB-DDR4-256GB-PCIe-SSD-Windows-10-Home-Black-FX505DU-WB72/244774720
https://www.notebookcheck.net/No-Intel-Required-Asus-TUF-FX505DT-Laptop-Review-with-Ryzen-7-and-GeForce-GTX-1650.426695.0.html
