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

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. S

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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. S