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this post was submitted on 03 Dec 2024
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Technology
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On the lowest level, GPUs are programmed directly against their physical RAM. Many sections are highly specialized for specific stream processors (shaders etc) and swapping data between these specialized physical registers is one of the most optimal ways to perform parallel work in the GPU.
It's really unfortunate, but GPUs are horribly complex at their lowest level and abstractions of that complexity generally perform something like >80% worse.
Hopefully some genius some day figures out how to resolve this, but for now your hardware changing means you need entirely new firmware, and the optimal paths in the GPU wouldn't be optimal anymore