how to configure graphics card for 4k tv

Some TVs have wider supported ranges at lower resolutions, especially TVs that don't support HDMI 2.1 bandwidth. We run the same test with the resolution set to 4k, 1440p, and 1080p. We repeat the test at least twice to confirm our findings. The results of both of these tests give us the effective variable refresh rate range. From there, we gradually increase the frame rate until we start seeing tearing or other issues.

We then enable G-SYNC from the pendulum demo, and, starting at the TV's native refresh rate and resolution, we gradually decrease the frame rate, looking for any issues.

We disable V-SYNC, as we want to ensure that the display is adjusting its refresh rate to match the source content. We use NVIDIA's Pendulum G-SYNC demo to test for tearing, stuttering, screen blanking, and other artifacts. We test Adaptive Sync on a custom-built PC with an RTX 3080 GPU. NVIDIA has grouped this new feature into their existing G-SYNC Compatible certification program. This new feature works with any GeForce RTX or GeForce GTX 16-Series GPU and requires a TV that supports HDMI Forum VRR. Originally only supported by the Xbox One S and the Xbox One X, NVIDIA added support for Adaptive Sync in October 2019. The announcement of HDMI 2.1 changed this, though, and added support for the open VESA Adaptive Sync standard over HDMI, also known as HDMI Forum VRR. The first few TVs with FreeSync had limited usefulness, though, as they only worked with PCs with AMD graphics cards and a few consoles, including the Xbox One X. In 2018, Samsung became the first brand to support VRR technology on their TVs, with the addition of FreeSync VRR support to their high-end QLED TVs. Until a few years ago, VRR technology was only supported on gaming monitors. Variable refresh rate (VRR) technology is designed to improve your gaming experience by reducing the amount of screen tearing that occurs when your game's frame rate doesn't match your display's refresh rate.

How to configure graphics card for 4k tv