Intel G41 is a graphics chip built in your CPU. Most commonly it's known as on-board graphics or integrated graphics.
For example, in my Skylake build (full specs in my sig), i have i5-6600K CPU that has Intel HD530 graphics chip inside it. If i wouldn't have dedicated GPU, my system would use the HD530 graphics chip. But since i have a dedicated GPU (MSI GTX 1060 Gaming X 3G), the CPU on-board graphics chip is automatically disabled and my system uses the dedicated GPU.