M5 Ultra 256GB or 2x DGX Spark? Which one?

Key points

• I have been researching for past few days and have zeroed in on dual sparks because higher throughput for agentic coding / multiple parallel requests and prompt processing advantage over M5 ultra.1
• So far from what I have read, token generation is close match or slightly better with M5 ultra, whereas sparks take lead in prompt processing and multiple users/parallel requests.1
• I am just not confident about the final choice for agentic coding - M5 Ultra 256GB or dual DGX Sparks?1
• If you own either of these, can you please share the model you use, overall experience and basic metrics such as prompt processing and decode speeds?1

Sources (1)

• [1]M5 Ultra 256GB or 2x DGX Spark? Which one?
  r/LocalLLaMA (top, daily) · Oct 11, 05:55 AM

  Currently contemplating adding either M5 Ultra 256GB or dual DGX Spark in addition to existing 5090.

  I have been researching for past few days and have zeroed in on dual sparks because higher throughput for agentic coding / multiple parallel requests and prompt processing advantage over M5 ultra.

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