SNES / Super Nintendo Emulators work nearly perfect now. The quaility of the graphics and sound is near perfection. Any mid-grade pc with a lower end graphics card should be able to run any SNES emulator smoothly.

Below, are a list of emulators by rank order. Ensure to research the emulator that you are using. Note also that some emulators allow the use of plugins. These plugins help speed up the emulator by producing better graphics and sound. Try all the emulators because even older ones may work better depending on your CPU configuration.