Nvidia DLSS 5 Leaked Through NBA 2K27: Modders Test Controversial AI Upscaling With Mixed Results

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Nvidia's controversial DLSS 5 leaked through NBA 2K27's early access build, enabling modders to test AI-powered neural rendering in games like Control and Skyrim. The leaked version causes dramatic visual changes and frame rate drops of 40-60%, reigniting debates about AI upscaling in gaming ahead of its planned fall release.

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Nvidia DLSS 5 Leaked Early Through NBA 2K27

Nvidia DLSS 5, the company's most controversial AI upscaling technology, leaked unexpectedly through NBA 2K27's early access build this week. Modders discovered a 158MB file called nvngx_dlssnr.dll—a reference to Neural Rendering—buried in the basketball game's installation files

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. The file, identified as version 310.8.0.0 of NVIDIA DLSSNR, contains the unreleased runtime for DLSS 5 and consists primarily of neural training weights with 148 million FP8 parameters

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. Members of the RenoDX modding community on Discord quickly extracted the file and began experimenting with AI-powered neural rendering across multiple titles

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Modders Bring DLSS 5 to Control, Skyrim, and More Games

The RenoDX modding community first got the leaked DLSS 5 working in Control before rapidly expanding to other games including Skyrim, Cyberpunk 2077, GTA V, GTA: San Andreas, Final Fantasy VII Rebirth, The Last of Us Part II, Elden Ring, and Palworld

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. The modification leverages both ReShade and RenoDX to activate the AI upscaling files, featuring several customization sliders and switches that allow users to adjust intensity levels

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. Videos circulating online demonstrate dramatic visual transformations—in Control, protagonist Jesse Faden's facial features become significantly more defined with visible laugh lines and enhanced makeup details when the "Neural Uplift" setting activates

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. In GTA: San Andreas, the technology applies filter effects to CJ's face, enhances city textures, and shifts lighting from warm to cool tones

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RTX 4000 Series Support Achieved Through Community Patching

Initially, the leaked DLSS 5 only functioned on RTX 5000 Series Blackwell GPUs due to incompatible CUDA instructions embedded in the binary

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. However, RTX Remix modder "Uncle Burrito" successfully patched the DLL file to enable compatibility with RTX 4000 series graphics cards including the RTX 4090 and RTX 4080

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. "All I had to do was look into it to see what binaries it's actually using. Find the ones that aren't compatible with Ada, and then patch in fresh ones myself," the modder explained

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. Tom's Hardware verified this patch works on Ada Lovelace hardware like the RTX 4080, though the AI model runs on FP8 which previous-generation hardware can execute

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. Support for Ampere GPUs and older may prove challenging since those lack native FP8 support

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Massive Performance Loss Raises Implementation Concerns

The leaked DLSS 5 version imposes a huge performance hit across all tested configurations. Modders report frame rate drops of 40-60% depending on the game and GPU used

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. In Final Fantasy VII Rebirth, one tester noted the mod "halves" their frames per second, while "swapping between presets eats a TON of vram"

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. Video demonstrations show performance loss dropping from 90 to 29 FPS in GTA V as settings adjust

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. On an RTX 5070 Ti at 4K, activating the mod crashes frame rates from 71 fps to 35 fps, while an RTX 5090 drops from 91 fps to 50 fps when engaging Neural Rendering in 4K

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. One modder on the RenoDX Discord server reported "almost 50 percent performance loss"

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. The VRAM usage also spikes dramatically when switching between different Neural Rendering presets

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Mixed Reactions Reignite AI Slop Debate

Reactions to the leaked DLSS 5 remain sharply divided, echoing the controversy that erupted when Nvidia first announced the technology in March. Some players praise the enhanced realism and improved environmental details, particularly in Control where lighting and shadow improvements appear impressive

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. However, critics continue labeling the results as AI slop, pointing to uncanny valley effects and characters that look barely recognizable

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. Cloud in Final Fantasy VII Rebirth "resembles an Instagram influencer" rather than his original design, while CJ in GTA: San Andreas appears "pretty terrifying"

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. "That's a different person, man," wrote one Reddit user

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. The technology appears to add or deepen shadows, simulate new skin shading techniques, and alter eyes to enhance realism, causing characters' faces to look dramatically different while technically adhering to their original structure

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What This Means for DLSS 5's Fall Launch

The leak suggests Nvidia DLSS 5 could arrive sooner than expected within its planned fall release window

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. However, this is clearly an unfinished early access build, meaning the final version may differ substantially in both visual output and performance impact

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. Nvidia first announced DLSS 5 in March, promising AI-powered "photoreal lighting and materials" in real-time through generative AI that fundamentally differs from previous DLSS technologies

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. While super resolution, ray reconstruction, and frame generation simply reconstruct original graphics at higher resolutions, Neural Rendering aims to introduce entirely new details via AI models

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. Initial demos across Resident Evil Requiem, Starfield, and Hogwarts Legacy sparked immediate backlash over "yassified" character appearances, with concerns about overriding developers' artistic intent

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. Nvidia CEO Jensen Huang responded by insisting the tool "doesn't change the artistic control," emphasizing that developers will have final say over implementation

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. Games built from the ground up with DLSS 5 integration may produce significantly better results than these modded implementations

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. Watch for official Nvidia announcements regarding optimized performance, confirmed hardware support beyond Blackwell GPUs, and developer control mechanisms as the fall launch approaches.

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