Acer's new series of XV3 gaming monitors offer modern refresh rates of up to 240Hz and response times of as low as 1 millisecond. They are also G-SYNC ready with the variable refresh rate (VRR) necessary to handle either the RTX or GTX 10-series of graphic cards. These new IPS panels come in either 24.5- or 27-inch variants, and will start at €249 (about US$275).
https://www.notebookcheck.net/Acer-s-Nitro-XV3-series-of-monitors-bring-NVIDIA-G-SYNC-compatibility-and-various-eye-saving-features.434393.0.html