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Nvidia RTX 5090 allegedly handles DirectStorage GPU decompression better than RTX 4090
Performance still favors of CPU decompression at times.
1440p flips the story, and while it showed slimmer margins, this time overall performance (specifically the 1% lows) favored GPU decompression. An older video he recorded backs up his statement, showing the RTX 4090 with a greater performance drop-off when toggling between CPU and GPU decompression, specifically in Spider-Man 2. Of course, shader computations still come into play, and so it makes sense that, at lower resolutions where the 5090 is more likely to be completely CPU limited, it would also have the spare cycles to handle decompression.
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