In order for you to play Red Dead Online on Windows with minimal graphics settings, your computer must meet the following requirements
Requires a 64-bit processor and operating system
Operating System:
Windows 10 - 64-bit
Processor (CPU):
Intel® Core™ i5-2500K / AMD FX-6300
Memory (RAM):
8 GB RAM
Graphics Card:
Nvidia GeForce GTX 770 2GB / AMD Radeon R9 280 3GB
Network:
Broadband Internet connection
Storage:
150 GB available space
Sound Card:
Direct X Compatible
In order to play Red Dead Online on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Requires a 64-bit processor and operating system
Operating System:
Windows 10 - April 2018 Update (v1803)
Processor (CPU):
Intel® Core™ i7-4770K / AMD Ryzen 5 1500X
Memory (RAM):
12 GB RAM
Graphics Card:
Nvidia GeForce GTX 1060 6GB / AMD Radeon RX 480 4GB
Network:
Broadband Internet connection
Storage:
150 GB available space
Sound Card:
Direct X Compatible