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PlayStation recently shared a video featuring Mark Cerny delivering a technical seminar on the PS5 Pro at Sony Interactive Entertainment's headquarters. As the system architect, Cerny provided an in-depth analysis of the PS5 Pro's hardware and addressed several rumors surrounding the new console. One of the main points he discussed was the concept of "FLOPflation," particularly focusing on an inaccurate figure of 33.5 TFLOPs that surfaced from a misunderstanding about the hardware, which was misinterpreted by a leaker who assumed a more extensive implementation of RDNA 3-inspired architecture.
In actuality, the PS5 Pro delivers 16.7 TFLOPs, an improvement over the PS5's 10 TFLOPs. Additionally, credible pre-release leaks indicated that the PS5 Pro could reach 300 TOPS for 8-bit calculations, and 67 TFLOPs for 16-bit computations. Cerny emphasized that the RDNA 2.X architecture, which is a custom version of AMD's RDNA 2, incorporates multiple features from RDNA 3 while retaining enough of its predecessor to avoid necessitating code rewrites for developers when they transition to the newer system.
Cerny also highlighted that the PS5 Pro features significant enhancements, particularly a new Ray Acceleration structure utilizing BVH8 (Bounding Volume Hierarchy). This advancement improves the management of graphics shader code, making it more efficient on the new hardware. The concept of BVH is essential in 3D rendering for performing graphics calculations, including reflections. The PS5 used BVH4, grouping bounding boxes into sets of four for ray tracing calculations; in contrast, the PS5 Pro can utilize BVH8, allowing it to process eight bounding boxes. Moreover, the Ray Intersection Engine has been enhanced from handling 4 boxes and 1 triangle on the PS5 to 8 boxes and 2 triangles on the PS5 Pro.
These upgrades to the PlayStation 5 Pro's ray tracing capabilities, facilitated by a highly customized version of the RDNA 2 GPU architecture, provide considerable performance improvements, especially in the rendering of curved and textured light reflections, although the gains for shadows and flat reflections are more moderate.
For those seeking a more comprehensive understanding, the full 37-minute seminar video offers detailed insights into the PS5 Pro, along with valuable context regarding the gaming console market and the technological advancements necessary for competitiveness.
In actuality, the PS5 Pro delivers 16.7 TFLOPs, an improvement over the PS5's 10 TFLOPs. Additionally, credible pre-release leaks indicated that the PS5 Pro could reach 300 TOPS for 8-bit calculations, and 67 TFLOPs for 16-bit computations. Cerny emphasized that the RDNA 2.X architecture, which is a custom version of AMD's RDNA 2, incorporates multiple features from RDNA 3 while retaining enough of its predecessor to avoid necessitating code rewrites for developers when they transition to the newer system.
Cerny also highlighted that the PS5 Pro features significant enhancements, particularly a new Ray Acceleration structure utilizing BVH8 (Bounding Volume Hierarchy). This advancement improves the management of graphics shader code, making it more efficient on the new hardware. The concept of BVH is essential in 3D rendering for performing graphics calculations, including reflections. The PS5 used BVH4, grouping bounding boxes into sets of four for ray tracing calculations; in contrast, the PS5 Pro can utilize BVH8, allowing it to process eight bounding boxes. Moreover, the Ray Intersection Engine has been enhanced from handling 4 boxes and 1 triangle on the PS5 to 8 boxes and 2 triangles on the PS5 Pro.
These upgrades to the PlayStation 5 Pro's ray tracing capabilities, facilitated by a highly customized version of the RDNA 2 GPU architecture, provide considerable performance improvements, especially in the rendering of curved and textured light reflections, although the gains for shadows and flat reflections are more moderate.
For those seeking a more comprehensive understanding, the full 37-minute seminar video offers detailed insights into the PS5 Pro, along with valuable context regarding the gaming console market and the technological advancements necessary for competitiveness.