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by noosphr 6 days ago
So does llm inference. You're lucky if you hit 40% of the advertised flops.
1 comments

Right, but datacenter GPUs optimized for LLM training/inference would have a bandwidth:compute ratio scaled to that workload.
No they don't.
Then where are the HDMI ports on Nvidia's current data center GPU product lines?
Why not? Seems like they would be poorly optimised?
Because llm inference is not the only workload a GPU can do and custom silicon cost $10b a chip.
AI optimised cards is the biggest cashcow for nvidia. They are definitely doing custom silicon. And Google et al have cards that don't even pretend to be able to do graphics.
There is more than one workload in AI. Inference for llms is memory constrained on even a single card. Training for llms is memory constrained on the level of racks. In both cases you hardly ever see more than 40% of advertised flops used.