Geekbench does some pretty comparable CPU + GPU prowess tests on multiple operating systems. I'm not sure how comparable the Geekbench compute scores are between platforms (Android vs Mac vs PC) because Android uses Vulkan+EGL, Mac uses Metal, and PC uses CUDA/Vulkan/OpenGL, but comparing within the same category the performance comparisons seem right.
You need some modern level of hardware acceleration for that, though, and platforms like gma950 just don't have the hardware to run that stuff. llvmpipe can fix a lot of compatibility issues but your CPU and GPU score will end up very close together.