Asus recently updated its ROG G20CB desktop with the latest NVIDIA 10 series GPUs, and we had a chance to check it out. While the latest ASUS ROG G20 features a GTX 1080 GPU, the older one had a GTX 980. What&rsquo;s intriguing is that, both the new and old machines have the same hardware &ndash;&nbsp;same CPU, RAM, storage and power supply, with the GPU being the only exception. Now, we already know that the NVIDIA GeForce GTX 1080-powered ROG G20 will offer better graphical performance than the GTX 980-powered G20, but by how much? To find out, we compared the two ASUS ROG G20CB desktops. Let&rsquo;s begin.