FSR 4 ghosting on RX 6000 series GPUs has plagued AMD RDNA 2 users for months, forcing them to choose between outdated drivers and broken visuals. OptiScaler, a free open-source mod that bridges upscaling across GPUs, has released an update that finally eliminates this problem. The fix allows RX 6700 XT, RX 6950 XT, and other RX 6000 cards to run INT8 FSR 4 with the latest AMD Adrenalin drivers, eliminating the need for security-vulnerable 23.9.1 drivers from September 2023.
Key Takeaways
- OptiScaler update fixes FSR 4 ghosting and shimmering on RX 6000 with latest Adrenalin drivers
- RX 6000 users no longer need to downgrade to insecure 23.9.1 drivers for stable FSR 4
- Common issues resolved: black artifacts on screen edges, quality mode ghosting in Cyberpunk 2077 and Stalker 2
- FSR 4 officially unsupported on RDNA 2; OptiScaler enables it via injection technology
- Installation is free and straightforward via GitHub; avoid Ultra Quality preset to prevent flickering
What Is FSR 4 Ghosting on RX 6000?
FSR 4 ghosting on RX 6000 refers to visual artifacts—blurring, double images, and motion trails—that appear when using AMD’s FSR 4 upscaler on older RDNA 2 architecture GPUs. The problem emerged because FSR 4 is officially designed only for RDNA 4 and RX 9000 series cards. When users attempted to enable it on RX 6000 through mods or drivers, newer AMD Adrenalin versions introduced severe shimmering, pixelation, and black artifacts at screen edges, particularly in quality and performance modes. Games like Cyberpunk 2077, Horizon Forbidden West, Stalker 2, and Star Wars Jedi: Survivor showed the worst ghosting effects. The only workaround was reverting to Adrenalin 23.9.1, a driver from over two years ago that lacked modern security patches and features.
How OptiScaler Fixes FSR 4 Ghosting on RX 6000
OptiScaler is a tool that replaces native upscalers—DLSS2+, XeSS, FSR2+—with alternatives and enables frame generation on non-FG titles. The latest update specifically targets the INT8 version of FSR 4 on RX 6000, resolving driver incompatibilities that caused ghosting. Users can now run the latest Adrenalin drivers without visual breakage. The fix addresses the core issue: newer drivers changed how FSR 4 processes motion vectors and temporal data on RDNA 2, introducing artifacts that the updated OptiScaler now compensates for through injection technology.
Installation requires downloading OptiScaler from GitHub, placing it in a game folder (for example, Epic Games/Alan Wake), and launching the game with FSR 4 enabled in-game or via OptiScaler’s UI. Performance varies by title and settings—users report 65-69 FPS with FSR 4 performance upscaling in some titles, while XeSS quality mode at 720p to 1080p upscaling achieves 72 FPS. The tool works primarily in DirectX 12 titles; DirectX 11 games have limited support, and some titles like Split Fiction do not work at all.
Avoiding FSR 4 Artifacts and Flickering
Even with OptiScaler’s fix, certain settings trigger flickering and white flashes. FSR 4 Ultra Quality preset should be avoided entirely; Quality or Balanced presets eliminate most artifacting. For DirectX 11 games with DLSS inputs, shimmering can persist unless users disable Dilated Motion Vectors by adding `r.DilatedMotionVectors=0` to Engine.ini. Black artifacts on screen edges, common in FSR 4.0.1 and 4.0.2, disappear when downgrading to FSR 4.0.0 or switching to Quality preset. Windows 10 users may need to install the Agility SDK for compatibility.
Comparing FSR 4 to Alternatives on RX 6000
Native FSR 4 on RX 6000 without OptiScaler remains broken even with the latest drivers, producing ghosting and shimmering in quality and performance modes. FSR 3.1.5 and XeSS, by contrast, work more reliably on older AMD hardware and deliver superior hair and detail rendering. DLSS2+ inputs through OptiScaler also produce cleaner results than FSR 4 alone, though frame generation support remains limited to newer architectures. For users stuck on RX 6000, OptiScaler with XeSS or FSR 3.1.5 inputs often outperforms raw FSR 4, even after the ghosting fix.
Do I need to roll back AMD drivers to use FSR 4 on RX 6000?
No. Before OptiScaler’s update, users had to downgrade to Adrenalin 23.9.1 to avoid FSR 4 ghosting. The new OptiScaler version eliminates this requirement, allowing you to run the latest secure Adrenalin drivers without visual artifacts.
Can I use FSR 4 on RX 7000 or newer AMD GPUs?
FSR 4 works natively on RDNA 3 and RDNA 4 architectures (RX 7000 and RX 9000 series), though some users still report minor issues without OptiScaler. OptiScaler enhances compatibility and stability across all AMD GPUs, not just RX 6000.
What performance can I expect with OptiScaler FSR 4 on RX 6000?
Performance depends on game, resolution, and quality preset. Users report 65-69 FPS with FSR 4 performance upscaling, 72 FPS with XeSS quality mode at 720p-to-1080p upscaling, and 80 FPS at 1080p performance mode in some titles. Games with path tracing or heavy effects see lower frame rates, around 47-60 FPS depending on settings.
OptiScaler’s FSR 4 ghosting fix represents a major win for RX 6000 owners tired of choosing between outdated drivers and broken visuals. The free tool eliminates the need to sacrifice security for playability, and its straightforward installation makes it accessible even to non-technical users. For anyone with a 6700 XT, 6800 XT, or 6950 XT, this update is worth testing immediately—just remember to skip Ultra Quality preset and you’ll see clean, stable upscaling in your favorite games.
Edited by the All Things Geek team.
Source: Tom's Hardware
