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hedgehogtoday at 8:32 PM1 replyview on HN

It should be faster, Q6 on Ryzen 395 using Vulkan llama.cpp is about 22 tokens/s with no MTP, and I'd expect the Spark to be 20% faster or something in that neighborhood.


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cmrdporcupinetoday at 8:38 PM

Probably. I've spent zero time with optimization at this point. Code is all new this morning.

Curious if llama.cpp is doing full BF16 for the n-gram embeddings table, or if that's quantized, too. I was going to try nvfp4 for that but wasn't sure about the quality risk.

Spark usually wins on prefill, not decode. I think memory bandwidth is about same between the two. What do you get for prefill/prompt?

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