Oh I see... that $820 system is total horse for the money. Only 8GB of RAM and a terrible GTX 1650 gpu. It's such a bad deal that the system I spent $800 on in 2014 (GTX 970, Xeon E3-1231v3, 8GB RAM) would actually still be a better gaming system today. Seriously. You should seriously build your own . It's as easy as Legos. Here is a system for $850 with a gpu (1660 Super) that gives roughly 70% higher framerate than a 1650 at 1440p, has twice as much RAM, has a much better cpu, has an SSD, and has a board that will allow you to install a PCIE-4.0 SSD later on if you want and also has wifi and bluetooth built in.
PCPartPicker Part List
CPU: AMD Ryzen 5 3600 3.6 GHz 6-Core Processor ($174.99 @ B&H)
Motherboard: Asus TUF GAMING X570-PLUS (WI-FI) ATX AM4 Motherboard ($189.99 @ Best Buy)
Memory: G.Skill Ripjaws V 16 GB (2 x 8 GB) DDR4-3600 Memory ($69.99 @ Newegg)
Storage: Crucial P2 500 GB M.2-2280 NVME Solid State Drive ($64.99 @ B&H)
Video Card: MSI GeForce GTX 1660 SUPER 6 GB VENTUS XS OC Video Card ($229.99 @ Newegg)
Case: Corsair 100R ATX Mid Tower Case ($54.98 @ Amazon)
Power Supply: SeaSonic S12III 500 W 80+ Bronze Certified ATX Power Supply ($67.98 @ Newegg)
Total: $852.91
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-05-16 17:04 EDT-0400
Though add another $20 or so to buy a Windows 10 license from a key reseller, I know there is a forum on reddit where people sell their unused volume license keys for Windows 10 Home for ~$20 or so.
If you really have to hit that $820 price though you can go to a cheaper B450 board, though you'll never be able to use a PCIE-4.0 SSD later on, and you might have to do a BIOS upgrade beforehand if going B450. And you could go with a $40 1TB hard drive instead of a $60 480GB SSD. Though surely you have other mechanical drives you can recycle from an old computer, right?
If you have never built a PC don't be intimated, it's quite easy. There is a youtuber called Carey Holzman who has complete build videos that show just how easy it is to build a PC in extreme detail, and I highly recommend watching some of his build videos if you have never built a PC before. Though he always uses Intel processors. Which I would not now because not only are AMD processors better right now, but they're cheaper too.
This system won't be as good as PS5, but should be enough to outperform the rumored XBox Series S.