1. Specifications may vary depending on model and/or region. 2. Actual refresh rates may vary depending on model and/or region, computer specifications/hardware and/or set up. This device is designed to support refresh rate overclocking up to 144Hz. However, overclocking may result in system instability. If you experience instability, try reducing the overclock to a lower refresh rate through the on-screen display settings. 3. Please note that this NVIDIA® G-SYNC®ULYIMATE monitor requires that your computer has an NVIDIA® GEFORCE® GTX 1070 or higher graphics card installed.