Acer Predator X34 OLED Curved gaming monitor review: Extreme curve and performance from Tomshardware on 2024-11-17 13:00 (#6S9EQ) Acer's Predator line welcomes another OLED gaming monitor, the X34. It's a 34-inch 21:9 panel with WQHD 3440x1440 resolution, 240 Hz, Adaptive-Sync, HDR400, wide gamut color and a super tight 800R curvature.