Is G-Sync mandatory for Manli RTX 5090 D v2 in path tracing?
The path-traced lighting is breathtaking, but having a horizontal tear across the middle of the screen at 4K 144Hz is just distracting. The GDDR7 memory on the Manli Star Ship RTX 5090 D v2 OC has insane bandwidth, but at 140+ FPS, it was slightly out of sync with the monitor's refresh rate. I first tried V-Sync in the driver, but the input lag jumped to 40ms, which felt like playing in mud. I switched to G-Sync Compatible mode, manually locked the monitor to 141Hz, and capped the in-game FPS at 140. Using a frame comparison tool, the tearing completely vanished and frame times stayed around 7.1ms. I did notice some slight flickering when I first enabled G-Sync, but a monitor firmware update fixed that. VRAM temps are sitting at 55-62℃ and the core is at 64-70℃. I've switched the sync mode to 'Ultra' in the control panel and it's perfect.
