Some CPUs struggle with ArtRage in case of high-resolution, high-texture or deep-layered art work. The interface lags or stutters. Almost all digital art and major image/video editor apps available for Windows run on the dedicated graphics card (NVIDIA and AMD Radeon) to ensure smooth and uninterrupted graphics rendering. Why can't ArtRage? I believe the most important feature that ArtRage needs immediately is GPU support. The CPU alone can't do it very well.