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0 pointsreitzensteinm5y ago0 comments

You can read off a GPU in 10us, which is just a single sample at 96khz.

If your entire stack lived in the GPU, and you're just reading out the result, this is trivial.

If you're constantly copying buffers back and forth because some effects are implemented in the CPU and some in the GPU, not so much!

It's probably the case that a full stack GPU implementation would blow what we have out of the water, but you'd lose your entire ecosystem in the process, so it's probably never going to happen.

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cma5y ago

Sony is trying some stuff along those lines with the PS5. They have one compute unit on the GPU with a few features fused off that is dedicated to audio.

Twirrim5y ago

What's the latency for integrated GPUs?

reitzensteinmOP5y ago

Crystalwell had a shared CPU/GPU L4 cache with ~50ns latency. I don't think there was a programming model where you could bounce data back and forth that fast, but I don't see a reason why the hardware wouldn't be capable of it.

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