
Microsoft's DirectStorage API has been known to have weird performance quirks with GPU decompression. However, YouTuber Compusemble claims that Nvidia's latest GeForce RTX 5090 GPU handles GPU decompression better than the prior generation RTX 4090, showing less of a performance gap when using GPU decompression vs CPU decompression.
The YouTuber benchmarked two games with DirectStorage (DS) support, Ratchet and Clank: Rift Apart and Spider-Man 2. The games were tested with DirectStorage GPU decompression and CPU decompression, on an RTX 5090 at 4k, 1440p, and 1080p resolutions. Note that no RTX 4090 tests were shown for comparison, which has an a priori assumption that DS causes a loss of performance.