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Despite that disabled V-Sync unlocks the framerate, window itself is V-Synced, so you don't get any benefits.
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While AMD enables FreeSync for Fullscreen Windowed BitBlt surfaces, Nvidia allows G-Sync to run with <i>any</i> window.
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This is problematic because refresh rate can get synchronized to wrong windows, framerate may break on other displays and display stutters may occur.
@@ -508,7 +508,7 @@ <h3>Installation</h3>
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This setting Disables texture mirroring between VRAM and RAM, which decreases RAM usage and allows using high resolution textures.
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<b>This also breaks Alt-Tab functionality in Fullscreen Mode.<sup><atitle="Why?" href="#annotation4">[4]</a></sup></b>
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<b>This also breaks Alt-Tab functionality in Fullscreen Mode.<sup><atitle="Why?" href="#annotation6">[6]</a></sup></b>
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To mitigate that, either use <ahref="#DXVK">DXVK</a>, <ahref="#FAQ">Windowed Mode</a> or just avoid Alt-Tabbing. This is also covered later in the guide.
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</p>
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</ol>
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<spanclass="annotations">
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D3D9 loses the graphics device if it loses the screen ownership (Alt-Tab, Sleep, etc.). To recover, it needs to either have a copy of textures in RAM, or be able to reconstruct the memory from ground up.
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Fallout: New Vegas, like most D3D9 games, use the first method. Thus by disabling this behavior, after Alt-Tabbing, game is in a limbo where it doesn't know what to do.
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<li>V-Sync must be enabled in order to fully get rid of tearing.</li>
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<li>The framerate must be capped below your refresh rate in order for VRR to not disengage and fallback to V-Sync, as this causes a very big increase in latency.</li>
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</ul>
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<divclass="card-yellow">
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<p>
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<!-- TODO: INTEL -->
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You can <strong>check if you are using VRR</strong> by going to the <b>Nvidia Control Panel</b> if you're on Nvidia or <b>Adrenalin's Display Settings</b> if you're on AMD.
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<br>
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If the G-Sync tab is missing from NVCP, your display doesn't support it or doesn't have the feature enabled in the OSD.
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<br>
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<br>
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Nvidia users need to make sure that G-Sync is set to <b>Fullscreen</b> and that <b>Display Specific settings</b> are enabled. The <b>Windowed</b> option is problematic due to it being a hacky method.
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Both of the settings are wrongly named so they do not actually directly refer to the display method.
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</p>
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</div>
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<li>
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<h4>No V-Sync</h4>
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<li>
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No special prerequisites.
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</li>
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</ul>
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<p>
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Due to Bethesda's oversight, the V-Sync toggle in the launcher doesn't work.
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<br>
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To disable V-Sync, in <b>FalloutCustom.ini</b> set the following:
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<divclass="card-basic">
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<p>
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Due to Bethesda's oversight, the V-Sync toggle in the launcher doesn't work.
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[Display]
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<br>
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To disable V-Sync, in <b>FalloutCustom.ini</b> set the following:
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<p>
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[Display]
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<br>
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iPresentInterval=0
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</p>
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</div>
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Disabling V-Sync through other means (Driver, DXVK) also works.
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iPresentInterval=0
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</p>
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</div>
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</ul>
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Disabling V-Sync through other means (Driver, DXVK) also works.
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</p>
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</div>
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</li>
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</ul>
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<br>
@@ -1174,7 +1188,7 @@ <h4>Installation and configuration</h4>
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<li>Install and launch <ahref="https://www.guru3d.com/files-details/rtss-rivatuner-statistics-server-download.html" target="_blank">RTSS</a>. Open your System Tray (the triangle pointing upwards on the taskbar) and click on the RTSS icon to open it.</li>
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<li>Click <strong>Add</strong> and select <b>FalloutNV.exe</b>.</li>
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<li>Set its <b>Application Detection Level</b> to <strong>Low</strong>.</li>
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<li>Use the calculator below to determine your <strong>optimal FPS limit</strong><sup><atitle="Warning" href="#annotation2">[2]</a></sup> setting. You can find your exact refresh rate <b><ahref="https://www.testufo.com/refreshrate" target="_blank">here</a></b>.</li>
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<li>Use the calculator below to determine your <strong>optimal FPS limit</strong><sup><atitle="Warning" href="#annotation7">[7]</a></sup> setting. You can find your exact refresh rate <b><ahref="https://www.testufo.com/refreshrate" target="_blank">here</a></b>.</li>
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<divclass="card-basic">
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<divclass="center" style="margin: 10px;">
@@ -1212,14 +1226,8 @@ <h4>Installation and configuration</h4>
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<hr>
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<spanclass="annotations">
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<ol>
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You can <strong>check if you are using VRR</strong> by going to the <b>Nvidia Control Panel</b> if you're on Nvidia or <b>Adrenalin's Display Settings</b> if you're on AMD. If the G-Sync tab is missing from NVCP, your display doesn't support it or doesn't have the feature enabled in the OSD.
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Nvidia users need to make sure that G-Sync is set to <b>Fullscreen</b> and that <b>Display Specific settings</b> are enabled, the <b>Windowed</b> option is problematic due to it being a hacky method. Both of the settings are wrongly named so they do not actually directly refer to the display method.
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</li>
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You always want your FPS capped by a <strong>limiter instead of being hardware bound</strong>, this will reduce lag and increase power efficiency. It is also less jarring for the player when visual smoothness is the same across all scenes.
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