The XDA piece on DLSS 4 ray reconstruction lands in the year frame generation finally feels finished. The catch is the in-game support story. Not every title implements the upscaler you want, not every implementation is up-to-date, and the older games that would benefit the most often shipped before any of this existed. Game upscaling apps fill the gap. Some inject upscaling into games that never had it. Some swap in newer DLL versions on titles whose support has aged. Some are the official vendor tools that finally became useful in 2024 and 2025.
We tested 7 game upscaling apps on PC in 2026. The list covers the GPU-agnostic external upscalers (Lossless Scaling, Magpie) that work on any title, the official vendor apps (NVIDIA App, AMD Software: Adrenalin) that drive in-driver upscaling, and the swap-and-tweak utilities (Special K, DLSS Swapper, DLSSTweaks) that fix older or quirky implementations.
What to look for in a game upscaling app
A game upscaling app earns its slot when:
- It actually works with the title. External upscalers (Lossless Scaling, Magpie) work with anything by upscaling the framebuffer. Driver-level upscalers (NVIDIA App’s RSR/DLSS Override, AMD’s RSR) work when the game cooperates.
- It runs without breaking anti-cheat. DLL swaps in competitive games can flag. Lossless Scaling and Magpie operate at the OS level and rarely flag.
- It plays nicely with HDR. DLSS HDR support, RTX HDR via NVIDIA App, and AutoHDR via Special K all live in this category.
- It doesn’t add input latency that ruins the win. Frame generation is the trade-off: smoother visuals, slightly higher latency. Apps that let you tune the trade-off are the right shape.
- It exposes the knobs. Sharpening, Mode (Quality / Balanced / Performance), and override DLL paths should be reachable without registry edits.
- It’s open about what it’s doing. DLL swappers should be transparent about which version of which file goes where.
Quick comparison
| App | Best for | Platforms | Free plan | Starting price |
|---|---|---|---|---|
| Lossless Scaling | GPU-agnostic external upscaling + LSFG frame gen | Windows | No, paid | Steam paid (small one-time) |
| Magpie | Open-source GPU-agnostic upscaling | Windows | Yes, fully | Free |
| NVIDIA App | Official NVIDIA control with DLSS Override | Windows | Yes, fully | Free (RTX GPUs) |
| AMD Software: Adrenalin | Official AMD with RSR, AFMF, FSR controls | Windows | Yes, fully | Free (Radeon GPUs) |
| Special K | Advanced rendering tweaks (HDR, FPS limit, FRAPS) | Windows | Yes, fully | Free |
| DLSS Swapper | Swap DLSS DLL versions in installed games | Windows | Yes, fully | Free |
| DLSSTweaks | Force DLSS settings and Preset overrides | Windows | Yes, fully | Free |
The 7 apps
1. Lossless Scaling — best external upscaler overall
Lossless Scaling is the paid Steam app that became the de facto external upscaler through 2023 and 2024. The LSFG frame-generation pass (Lossless Scaling Frame Generation) works on any title regardless of GPU vendor and turns 60 FPS native into 120 FPS smooth-feeling output. The integer scaling, FSR3, and NIS modes cover the upscaling side. Borderless-windowed required for capture, but the modes are clean once that’s settled.
Where it falls short: input latency is the obvious cost. The motion-clarity hit is real on some titles. Older GPUs may not see the full benefit.
Pricing:
- Paid one-time purchase on Steam (small)
Platforms: Windows.
Download: Steam
Bottom line: the pick if you want upscaling and frame generation in any title without waiting for the developer to patch it in.
2. Magpie — best open-source external upscaler
Magpie is the open-source GPU-agnostic upscaler that does what Lossless Scaling did before LSL added frame generation. The upscalers (FSR, NIS, anime4k, Lanczos, and Adaptive Sharpen) cover the spectrum. Per-game profiles, hotkey toggle, and overlay HUD make the workflow smooth.
Where it falls short: no frame generation. Once Lossless Scaling added LSFG, Magpie’s spotlight shifted to the upscaler-only crowd.
Pricing:
- Free, open-source
Platforms: Windows.
Download: Magpie on GitHub
Bottom line: the pick if you want upscaling (not frame gen) without paying.
3. NVIDIA App — best official upscaler for RTX GPUs
NVIDIA App replaced both GeForce Experience and the Control Panel through 2024 and 2025. The DLSS Override panel forces newer DLSS DLL versions and Preset letters into supported titles without manual DLL swaps. RTX HDR adds an HDR layer on top of SDR titles. The driver update pipeline is now in the same app.
Where it falls short: RTX GPUs only. Some legacy Control Panel options are still being migrated.
Pricing:
- Free
Platforms: Windows.
Download: NVIDIA App
Bottom line: the default for any RTX-equipped PC in 2026.
4. AMD Software: Adrenalin Edition — best official upscaler for Radeon GPUs
AMD Software: Adrenalin Edition wraps the AMD driver with Radeon Super Resolution (RSR), AMD Fluid Motion Frames (AFMF for any DX11/DX12 title), and per-game FSR controls. AFMF 2 in particular is the driver-level frame generation answer to NVIDIA’s DLSS-FG for Radeon owners. The interface caught up to NVIDIA’s through 2024.
Where it falls short: Radeon GPUs only. AFMF 2 has scenarios (very low base frame rates, fast camera pans) where the artefacts are noticeable.
Pricing:
- Free
Platforms: Windows.
Download: AMD Adrenalin
Bottom line: the default for any Radeon-equipped PC in 2026.
5. Special K — best advanced rendering tweaker
Special K is the advanced overlay that does almost everything but upscale natively. Frame limiter, AutoHDR, custom HDR for SDR-mastered games, FPS metrics, and per-game DLL injection rules. The Steam-injection helper makes it work cleanly across the Steam library. Paired with another upscaler, it covers the remaining gaps.
Where it falls short: the UI is dense. The wiki is mandatory reading. Anti-cheat in some titles flags Special K’s injection.
Pricing:
- Free, open-source
Platforms: Windows.
Download: Special K wiki
Bottom line: the pick for power users who want HDR retrofitted and frame metrics overlaid.
6. DLSS Swapper — best DLL swap utility
DLSS Swapper is the dedicated app for swapping DLSS, FSR, and XeSS DLL versions in installed games. Library detection works across Steam, Epic, GOG, Ubisoft, and EA. The newer DLSS Preset E and Preset F often look better than the version a 2023 game shipped with, and Swapper makes the change a one-click affair (with one-click rollback).
Where it falls short: NVIDIA App’s built-in DLSS Override covers a similar workflow for RTX users. Swapper still wins on the cross-vendor side (FSR and XeSS DLL swaps).
Pricing:
- Free, open-source
Platforms: Windows.
Download: DLSS Swapper
Bottom line: the pick for the DLL-swap workflow across all three upscalers.
7. DLSSTweaks — the force-DLSS outlier
DLSSTweaks is the niche tool that forces DLSS options into titles whose in-game menus don’t expose them. Force DLAA in any DLSS title. Override Preset letters. Force a specific scaling ratio per resolution. Tune sharpening defaults. It’s the under-the-hood utility for players who want the option DLSS supports but the developer didn’t expose.
Where it falls short: ini-file configuration. The learning curve is real. Some scenarios overlap with NVIDIA App’s Override; pick one based on which UI you tolerate.
Pricing:
- Free, open-source
Platforms: Windows.
Download: DLSSTweaks
Bottom line: the pick if you want DLAA in titles that only ship Quality / Balanced / Performance.
How to pick the right one
If you want one app that does upscaling AND frame generation regardless of GPU: Lossless Scaling.
If you want free open-source upscaling: Magpie.
If you own an NVIDIA RTX GPU: NVIDIA App is mandatory. Pair with DLSS Swapper or DLSSTweaks for the edge cases.
If you own an AMD Radeon GPU: AMD Software: Adrenalin Edition is mandatory.
If you want HDR in SDR-only games: Special K or NVIDIA App (RTX HDR).
If you want to swap DLSS DLL versions in older games: DLSS Swapper.
If you want DLAA in titles that don’t expose it: DLSSTweaks.
FAQ
Will an upscaling app make any game run at 60 FPS? Lossless Scaling’s LSFG mode can roughly double the frame rate of any title, with input latency cost. Magpie upscales an existing frame to a higher resolution but doesn’t add frames. Frame generation needs a stable base frame rate to look right.
Does upscaling work on a non-RTX GPU? Yes for external upscalers (Lossless Scaling, Magpie). Yes for FSR-style upscaling in titles that ship FSR. DLSS specifically requires NVIDIA RTX hardware.
Is Lossless Scaling worth paying for? The frame generation pass (LSFG) is the differentiator. If frame generation in any title regardless of GPU matters, the cost is straightforward to justify.
Will upscaling break my anti-cheat? External overlays (Lossless Scaling, Magpie) operate at the OS level and rarely flag. Special K’s injection has been flagged by some kernel anti-cheats; check the game’s Special K wiki entry before competitive play.
Can I use DLSS in a game that doesn’t ship with DLSS? Not directly. Some mod scenes (notably Cyberpunk pre-1.6, Skyrim) ship DLSS mods, but the practice is mod-by-mod. DLSSTweaks doesn’t add DLSS; it tweaks DLSS in games that already have it.
What’s the difference between DLSS Override and DLSS Swapper? NVIDIA App’s DLSS Override is the official path for RTX GPUs to force newer DLSS versions. DLSS Swapper is the third-party tool that does the same plus FSR and XeSS DLL swaps across more launchers. They overlap; pick one.
