How do I enable DLSS in Train Sim World?

Train Sim World 7 and Train Sim World 6 have native NVIDIA DLSS on Windows PC; Train Simulator Classic does not. TSW6 supports Super Resolution and ordinary Frame Generation, while TSW7 adds DLSS 5 Multi Frame Generation. Super Resolution reconstructs pixels; Frame Generation inserts one frame, while Multi Frame Generation can insert several.

Train Sim World DLSS compatibility by version

DLSS support belongs to the simulator’s executable, not the graphics driver alone. Train Sim World 6 introduced native DLSS on its Windows PC branch, and Train Sim World 7 retained that integration while adding DLSS 5 Multi Frame Generation; the separate Train Simulator Classic branch has no native DLSS.

All RTX generations listed above can run DLSS Super Resolution. That does not mean they can all generate frames: RTX 20- and 30-series cards lack DLSS Frame Generation support, while Multi Frame Generation in Train Sim World 7 requires an RTX 50-series GPU.

Does Train Sim World 7 support DLSS 5?

Train Sim World 7 supports DLSS 5 features on its Windows PC branch, including Multi Frame Generation on RTX 50-series hardware. The game must expose the feature through its own graphics menu; installing a DLSS-capable driver is not enough.

The NVIDIA app cannot turn Train Sim World 6, Train Simulator Classic or a console edition into a DLSS 5 title. Nor can it supply Multi Frame Generation to an executable that lacks the required game-side integration. Driver updates can improve compatibility and provide the runtime needed by an existing implementation, but they cannot create that implementation.

What about Train Sim World 6 DLSS?

Train Sim World 6 has native DLSS Super Resolution and supports ordinary Frame Generation on compatible RTX 40- and 50-series cards. Its branch does not expose Train Sim World 7’s DLSS 5 Multi Frame Generation control, even when both games are installed on the same RTX 50 PC.

Does Train Simulator Classic support DLSS 5?

Train Simulator Classic has no native DLSS implementation of any generation. There is therefore no DLSS 5 setting, and changing NVIDIA app profiles, replacing DLL files or adding unofficial configuration commands does not provide proper game-integrated upscaling.

How to enable DLSS in Train Sim World 6 or 7

1. Confirm that you are running the Windows PC edition. DLSS does not appear in the PlayStation or Xbox versions.
2. Check the graphics processor. Super Resolution requires an NVIDIA RTX card. A GTX, AMD or Intel GPU will not expose NVIDIA DLSS. Our Train Sim World PC hardware guide explains the wider CPU, GPU and memory requirements.
3. Update the simulator and NVIDIA driver. Apply the updates for your installed TSW branch, restart Windows and launch the game on the dedicated RTX GPU rather than a laptop’s integrated graphics processor.
4. Set the display to its native resolution. Use the monitor’s actual output resolution and leave Screen Percentage at 100 when first testing DLSS. Reducing both screen percentage and DLSS render resolution produces an unnecessarily soft image.
5. Open the DLSS control. Go to Settings > Graphics > Advanced Settings > Upscaler, select NVIDIA DLSS, then choose a DLSS mode.
6. Start with Quality. Apply the setting and compare the same route, weather, cab view and station area. Move to Balanced or Performance only if the GPU remains the limiting factor.
7. Enable frame generation separately. On supported hardware, return to Advanced Settings and enable Frame Generation. Train Sim World 7 users with an RTX 50-series card can select the available Multi Frame Generation option instead.

For sensible frame caps, resolution choices and settings to use alongside DLSS, see our recommended Train Sim World graphics settings.

Which DLSS mode should I use?

DLSS Quality is the best default for Train Sim World. Cab displays, signal aspects, overhead wires and distant trackside signs expose the loss of source detail more readily than broad scenery does.

Avoid Performance mode at 1080p unless there is no workable alternative: its internal source resolution is too low for many small instruments and signal edges. Multi Frame Generation is not an image-quality mode and does not replace Quality, Balanced or Performance; it operates after Super Resolution has produced the rendered frames.

Should I enable Frame Generation or Multi Frame Generation?

Enable generated frames only after DLSS Super Resolution delivers a stable, responsive base frame rate. Frame generation changes displayed smoothness, but it does not make Train Sim World’s simulation, signalling, traffic or input processing run faster.

• RTX 20 and RTX 30: use Super Resolution only. These generations do not support Train Sim World’s Frame Generation controls.
• RTX 40: ordinary Frame Generation is available when the game branch supports it. Multi Frame Generation is not.
• RTX 50: ordinary Frame Generation works in TSW6 and TSW7; DLSS 5 Multi Frame Generation is available through the TSW7 implementation.

Disable generated frames if driving controls feel delayed or if you see duplicated edges around wipers, signal posts, overhead wires or HUD elements. It can also add GPU memory and processing overhead, so enabling it is not automatically faster in every scene.

Why is the DLSS option missing or greyed out?

A missing DLSS control normally points to the wrong game branch, platform, GPU or graphics-device assignment.

• Train Simulator Classic is running: it has no DLSS menu. Train Sim World and Train Simulator Classic are separate products.
• The console edition is running: PlayStation and Xbox do not expose NVIDIA DLSS settings.
• The GPU is not an RTX model: GTX, AMD and Intel hardware cannot use NVIDIA DLSS.
• The integrated GPU is active: assign Train Sim World to the high-performance NVIDIA processor in Windows, then restart the simulator.
• The game or driver is outdated: update both before changing configuration files or reinstalling the game.
• Only Frame Generation is absent: RTX 20- and 30-series cards support Super Resolution but not Frame Generation. Multi Frame Generation requires both TSW7’s game-side option and an RTX 50-series GPU.
• Windows GPU scheduling is disabled: enable hardware-accelerated GPU scheduling in Windows graphics settings, restart the PC and check the Frame Generation control again.

Do not copy unofficial Unreal Engine commands or replacement DLSS files into the installation directory. They cannot add the missing game logic and may instead cause startup failures, visual corruption or crashes after an update.

Why has DLSS not improved performance?

DLSS Super Resolution helps when rendering is limited by the graphics card; it cannot remove a CPU bottleneck, asset-streaming pause or frame-rate cap.

• Busy stations remain slow: passengers, services and scenery can limit the CPU, leaving little benefit from a lower internal resolution.
• The frame rate stops at a fixed value: inspect VSync and the frame limiter. Lower GPU load will not raise a capped frame rate.
• Stutters remain: shader compilation and asset streaming are separate from resolution scaling.
• The picture becomes blurred: use the monitor’s native output resolution, restore Screen Percentage to 100 and select Quality mode. Our Train Sim World image-softness fixes cover texture streaming and VRAM problems that DLSS cannot solve.
• Wires or signals ghost: test Quality mode with Frame Generation disabled before lowering other settings.

When Train Sim World is CPU-limited, reducing view distance, shadow load or active service complexity can help more than changing from DLSS Quality to Performance.

What can Train Simulator Classic users use instead?

Train Simulator Classic has no equivalent built-in AI upscaler. Its honest alternatives are lowering the output resolution, reducing anti-aliasing, shadows or scenery settings, or using a lower native display resolution; none of these is DLSS and each sacrifices image quality.

NVIDIA sharpening or display scaling may make a reduced resolution look less soft, but they do not reconstruct detail or generate frames. If Train Simulator Classic already runs at the monitor’s native resolution, adjusting its conventional graphics settings is safer than attempting to inject an unsupported upscaler.