You will be happy to know that Red Dead Redemption 2 pc is fully supported by PCSX4 – PS4 Emulator. You can enjoy this game on PC with 4k support and unlocked FPS. The game renders flawlessly on PC but, it requires a decent GPU if you are looking to play in 4k resolution. You may experience dropped frames if your CPU clock rate is below 3.4 GHz as the game uses asynchronous shader processing algorithm which requires a beefy CPU.
In our performance tests, we found that this game runs very well on low-end gaming PCs with some compromises in texture quality.
Anything above GTX 1070 will get a performance boost without skiping/droping frames as the core GS engine uses the dynamic load balancing scheduling. You will need Polaris or later for AMD and Pascal or later for Nvidia to support LBS otherwise you will experencing some frame skiping. You can disable frameskiping on older GPU,s but it will cause a performace drop on resoulution anything above 1080p.
These Red Dead Redemption 2 pc performance benchmarks are performed on Windows, on macOS you will get 10-15% less overall performance due to the limited shader acceleration support in metal-API.
Note: macOS users need to install the moltenVK library to support Vulkan through PCSX4.
We tested this game on the low end (GTX 1050) as well as high-end GPU (GTX 1080) with same system configuration, and we found that even if you have a low-end GPU equivalent to a GTX 1050, you can run this game in 1080p resolution at 60 fps easily with low texture settings. To run this game in 4K at 60fps you need to get at least GTX 1080 or Vega 56 GPU.