Sony has officially introduced Quick Spectral Super Resolution (QSSR), an artificial intelligence-driven upscaling technology developed specifically for the standard PlayStation 5 console. The software-focused reconstruction solution aims to elevate visual fidelity and stability across existing hardware, with early implementations already demonstrated in upcoming first-party titles.
A Software Evolution of PSSR
QSSR serves as an adaptation of PlayStation Spectral Super Resolution (PSSR), the upscaling feature engineered for the higher-end PlayStation 5 Pro. Sony characterized QSSR as a quick new evolution of PSSR founded on two primary technical innovations: a streamlined neural network architecture and a hand-tuned implementation designed to extract maximum performance from the standard PS5 hardware.
Addressing the distinction between the hardware tiers, Sony stated that while PSSR remains the gold standard on PS5 Pro, QSSR provides notable improvements to both image detail and image stability on the base PS5. The company confirmed that the first video games to take advantage of the new machine learning upscaler are Marvel’s Wolverine and Ghost of Yōtei.
Digital Foundry Analyzes Marvel’s Wolverine
Technical analysts at Digital Foundry evaluated early implementations of QSSR across both revealed titles, describing the potential of the technology as remarkable. The analysis outlet pointed out that lower rendering resolutions and sub-optimal upscalers have frequently compromised titles throughout the current console generation, noting that QSSR could mark a significant shift in visual consistency.
Digital Foundry reported that the quality boost in Marvel’s Wolverine can be exceptional. Detailed examination of the image quality showed substantial gains in temporal stability, an increased level of perceived detail, and considerably superior sub-pixel integrity. Furthermore, common visual artefacts observed in motion, particularly within complex assets like moving foliage, were heavily reduced when QSSR was engaged.
Frame Time Cost and Performance Trade-offs
In an analysis conducted by Digital Foundry founder Richard Leadbetter, tests performed on a Marvel’s Wolverine cutscene running in an uncapped Performance Mode illustrated the direct computational trade-offs of the technology. With QSSR enabled, the uncapped frame rate exhibited a performance penalty of approximately 8 to 10 frames per second.
Despite that raw drop, Leadbetter emphasized that the critical metric is the underlying frame time impact. By his calculations, QSSR incurs a frame time cost ranging between 1.5 and 1.8 milliseconds. Leadbetter characterized this overhead as reasonable for a machine learning-based upscaler operating from a low base input resolution, particularly given that the base PlayStation 5 processor lacks dedicated machine learning acceleration silicon. Leadbetter also deduced that higher input and output resolution targets would correspond to larger frame rate impacts.
In standard 60 frames per second performance modes that employ dynamic resolution scaling, the technology functions differently. Leadbetter noted that performance remains practically identical with or without QSSR active. In these configurations, dynamic resolution scaling lowers the internal rendering resolution to preserve the target frame rate, while QSSR handles the image reconstruction. Leadbetter explained that the enhanced quality of the upscaler compensates for the reduced base resolution, delivering a superior visual presentation overall.
Results on Ghost of Yōtei and Future Rollout
The visual impact of QSSR proved less pronounced when applied to Ghost of Yōtei. Analysts observed that because the game already features a high standard of image quality, the visible improvements from QSSR were less dramatic compared to the changes seen in Marvel’s Wolverine.
Performance costs in Ghost of Yōtei were similarly marginal. When running the game in an uncapped Variable Refresh Rate (VRR) Performance Mode at 120Hz, the frame rate dips observed with QSSR active were slight. One recorded segment demonstrated a drop of only 1 frame per second. Leadbetter described the impact as largely imperceptible, noting that the minimal performance loss prompted him to double-check whether the technology was functioning, as it produced visual stability with virtually no real-world performance drawback.
Much like the rollout strategy seen with PSSR on the PS5 Pro, QSSR is expected to be integrated into additional releases through game patches and implemented natively in future PlayStation 5 titles. It remains unconfirmed whether high-profile upcoming third-party games, including Rockstar Games’ Grand Theft Auto 6, will adopt the QSSR upscaling pipeline.
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