How to Enable DLSS 4 on RTX 30 and 40 (DLSS Override)
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You do not need an RTX 50 to get DLSS 4. The DLSS 4 Transformer model for Super Resolution and Ray Reconstruction — the image-quality upgrade — works on every RTX card from the 20 Series up, and you force it into older games with the NVIDIA App’s DLSS Override (set Model Presets to “Latest”) or with DLSS Swapper. Only Multi Frame Generation is locked to RTX 50. This guide shows exactly how to turn on DLSS 4 on an RTX 30 or 40 card, step by step, and why it’s worth doing even without multi-frame generation.
What DLSS 4 actually gives an RTX 30/40 card
“DLSS 4” is a bundle, and its pieces have different GPU requirements. The most useful part is not the RTX 50-exclusive frame multiplier — it’s the new Transformer AI model for upscaling, which runs on older cards:
| DLSS 4 feature | RTX 20 | RTX 30 | RTX 40 | RTX 50 |
|---|---|---|---|---|
| Super Resolution (Transformer model) | ✅ | ✅ | ✅ | ✅ |
| Ray Reconstruction (Transformer model) | ✅ | ✅ | ✅ | ✅ |
| Frame Generation — single (2X) | ❌ | ❌ | ✅ | ✅ |
| Multi Frame Generation (3X / 4X) | ❌ | ❌ | ❌ | ✅ |
So on an RTX 3070 or RTX 4070, DLSS 4 means a sharper, more stable upscaled image — noticeably less ghosting, shimmer, and blur in motion than the old CNN model — in every game you can force it into. RTX 40 also keeps single (2X) frame generation; RTX 20/30 get the image-quality gains only. For the full breakdown of what’s RTX-50-only, see DLSS 4 Multi Frame Generation Explained.
Before you start
You need two things reasonably up to date:
- A recent NVIDIA Game Ready Driver (572.16 or newer added the DLSS 4 overrides).
- A recent NVIDIA App (11.0.2.312 or newer — just update to the latest).
Update both from the NVIDIA App’s Drivers tab first. If the override options below don’t appear, your app or driver is too old.
Method 1: NVIDIA App DLSS Override (easiest)
This is the no-file-editing way and works for most modern DLSS games:
- Open the NVIDIA App and go to the Graphics tab.
- Select the game you want from the list (or select Global to apply to every supported game at once).
- Open Driver Settings for that game.
- Find DLSS Override - Model Presets. Set Super Resolution to Latest, and if the game supports ray tracing, set Ray Reconstruction to Latest too.
- Click Apply.
That forces the game to load the newest DLSS 4 Transformer model — currently the Transformer “Preset K” — even if it shipped with an older DLSS version. You can confirm it’s active in-game with the Alt+R overlay, which now shows DLSS override status.
Two related overrides in the same panel are worth knowing:
- DLSS Override - Super Resolution lets you force a mode (e.g. push a game to Performance) beyond what its menu offers.
- DLSS Override - Frame Generation (RTX 40 and 50 only) lets you toggle frame generation where the game itself doesn’t expose it.
Method 2: DLSS Swapper (for unsupported games)
If a game isn’t in the NVIDIA App’s override list, or you want manual control over the exact DLL, use DLSS Swapper:
- Download and open DLSS Swapper.
- Click the game you want to modify.
- Click the current DLSS version shown and pick the latest version.
- Click Swap.
DLSS Swapper replaces the game’s nvngx_dlss.dll with the newest one, which pulls in the Transformer model. It’s the reliable fallback for older or unlisted titles. (If a game’s anti-cheat is strict, prefer the NVIDIA App override, which is driver-side.)
Which DLSS mode to pick after enabling it
The Transformer model looks clean enough that you can often run a more aggressive mode than you would have on the old model and still gain frames:
| Target | Mode |
|---|---|
| Best image quality, small FPS gain | Quality |
| Balanced FPS and clarity (most players) | Balanced |
| Maximum FPS, competitive play | Performance |
| Very high resolutions (4K) | Performance / Ultra Performance |
For the full mode breakdown see DLSS Quality vs Balanced vs Performance.
Bottom line
DLSS 4’s best trick for the majority of players isn’t the RTX 50 frame multiplier — it’s the Transformer upscaling model, which runs on every RTX 20/30/40 card. Update your driver and NVIDIA App, set DLSS Override - Model Presets to Latest (or swap the DLL with DLSS Swapper), and you get sharper, more stable DLSS 4 image quality in almost any DLSS game — plus more real frames and lower input lag, because super-resolution is real upscaling, not frame generation.
The Tier1Suite handles the other half of responsiveness that no upscaler touches — timer resolution, background load, and the input pipeline — so the extra real frames DLSS 4 gives you actually translate into faster aim.
Related guides
Frequently asked questions
Can I use DLSS 4 on an RTX 30 or RTX 40 card?
Yes. DLSS 4's Transformer model for Super Resolution and Ray Reconstruction — the image-quality upgrade — works on every RTX card from the 20 Series up, including RTX 30 and 40. Only DLSS 4 Multi Frame Generation (the 3X/4X frame multiplier) is locked to RTX 50. So an RTX 3070 or 4070 gets the sharper, more stable DLSS 4 upscaling; it just doesn't get multi-frame generation.
How do I enable DLSS 4 on older games?
Use the DLSS Override in the NVIDIA App. Update to a recent Game Ready Driver and NVIDIA App, open the app, go to Graphics, pick a game (or use the global toggle), open Driver Settings, and set 'DLSS Override - Model Presets' to Latest for Super Resolution and Ray Reconstruction, then Apply. This forces the game to use the newest DLSS 4 Transformer model even if it originally shipped with an older DLSS version. No file editing required.
What is DLSS Override - Model Presets set to 'Latest'?
It tells the driver to run the newest DLSS AI model regardless of what the game bundled. As of the early-2025 update, 'Latest' maps to the Transformer 'Preset K', a refinement of Preset J with better temporal stability, less ghosting, and more detail in motion. Setting Super Resolution and Ray Reconstruction to Latest is how you get DLSS 4 image quality in a game that shipped with DLSS 3 or older.
What is DLSS Swapper and when should I use it?
DLSS Swapper is a free tool that replaces a game's DLSS DLL (nvngx_dlss.dll) with a newer version. Use it for games that aren't listed in the NVIDIA App's override, or when you want manual control over the exact DLL version. Open DLSS Swapper, pick the game, select the latest DLSS version, and click Swap. The NVIDIA App override is easier for most people; DLSS Swapper is the fallback for unsupported titles.
Does forcing DLSS 4 lower input lag?
Indirectly, yes. DLSS 4 Super Resolution is real upscaling — it renders at a lower internal resolution and reconstructs a sharp image, which raises your real frame rate, and higher real FPS means lower input lag. The Transformer model also looks cleaner at aggressive Performance/Balanced modes, so you can push resolution scaling harder for more frames. This is upscaling helping responsiveness — unlike frame generation, which adds latency.