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I own one, I don’t feel like the RAM is a huge issue (of course I want 192GB to run something like DS4 Flash). The lack of FP4 and slow memory bandwidth is rough. NVFP4 support is such a huge advantage that I would recommend others to buy a DGX spark over a strix halo if you’re using it purely for AI. Strix halo works better for general computing.

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Heads up, you can absolutely run DS4 Flash on a 128gb machine - I have it running on my Strix Halo box right now.

https://github.com/antirez/ds4

How has it been and how’s the speed? I read online that the it’s ~200 TPS for PP and ~15 TPS for TG. Unfortunately for those speeds, it’s very very hard to use for agentic stuff.

That's pretty accurate to what I've seen, I'd definitely recommend a smaller model for active agentic use on that hardware.

It definitely seems to be the leader on 'general intelligence' on this hardware from my casual usage, but the newer Qwen or Gemma series models are much more usable speed-wise for agentic use, and often is as good or better than DS4 on that front.

There's a glimmer of hope with ROCmFP4 which seems to double the current throughput: https://github.com/charlie12345/rocmfp4-llama

I saw that but end of the day, the chips themselves don’t have hardware support for FP4. There’s smart ways around this limitation but it will never natively be close to true FP4 performance like MXFP4 and NVFP4 (happy to be proven wrong though).

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