Nintendo Switch emulator System requirements
It's hard to say the exact system requirements, it heavily depends on which game you're playing. If you experience too much lag, then changing to a lower resolution may drastically improve your fps. These are the rough estimate system requirements for a Nintendo Switch game:
Minimum (for 2D games)
CPU: Intel Core i3-6100 / AMD Ryzen 5 2500X
GPU: Intel HD Graphics 530 / Nvidia GeForce GT 710 or better
RAM: 8GB
Recommended (for 3D games)
CPU: Intel Core i7-8700k
GPU: Nvidia GTX 1070 Ti
RAM: 16GB
Currently on Windows, an Intel or Nvidia GPU is recommended due to AMD GPU driver issues.
GPUs must support OpenGL 4.5 (or higher) & OpenGL Compatibility profile.
To find out if your GPU meets these requirements, visit https://opengl.gpuinfo.org and check your GPU details.