First off, the 2021 ROG Zephyrus Duo 15 GX551Q SE (Special Edition) – that’s a mouthful – is now built on AMD Ryzen 5000 hardware and Nvidia RTX 3000 graphics. It keeps the dual-screen design, but the 4K option has been bumped to the faster 120 Hz panel variant with 8 ms response, a better-balanced option for both professional use and gaming.