Simple Mandelbrot viewer to compare Delphi VCL to Skia4delphi drawing speed.
Results:
Skia DrawPoint: 365 ms
Skia Pixelmap: 189 ms
VCL Pixel: 2142 ms
VCL Scanline: 175 ms
The binary release has the exe for Windows that will save you from having to compile the source yourself if you're just curious.