To improve performance in graphic-intensive tasks, upgrading the RAM might help to some extent, but the most direct impact would come from upgrading the GPU (Graphics Processing Unit), as it is specifically designed to handle the rendering of images and videos. Upgrading the SSD would improve general system responsiveness and boot times, but not specifically graphics performance. While a motherboard upgrade might allow for more advanced components, it is not the first component you would look to for improving graphic performance. The NIC (Network Interface Card) primarily manages internet connectivity and would not significantly affect graphic design software performance.