RDNA2 or Snapdragon based graphics processors give the best performance. Graphics: OpenGL ES 3.0 or higher, OpenGL ES 3.2 / Vulkan 1.1 is recommended.Snapdragon 700 or newer is typically recommended. For Qualcomm devices, processors with 2 or more 'big cores' recommended. Processor: A 64-bit x86-64 or AArch64 processor, as powerful as possible.OS: 64-bit edition of Android (5 or higher).Onboard graphics may work, but drivers may vary. Graphics: A graphics card that supports Direct3D 11 / OpenGL 4.4 / Vulkan 1.1 is recommended.Highly recommended to have 4 cores or more. Processor: A 64-bit x86-64 or AArch64 processor.Most modern Linux distributions should work given support for Dolphin's dependencies, and FreeBSD is unsupported but also may work. OS: 64-bit edition of Windows (10 or higher), Linux, or macOS (macOS 10.14 Mojave or higher).
Generally, these are the minimum recommended requirements for Dolphin.
Every game has different requirements, some titles may require a powerful computer while some other titles may not.