Ahmad(@TheAhmadOsman):Mac Studio M5 Ultra vs 2x DGX Spark for DeepSeek V4 Flash - DGX Sparks: 2.41x faster on prefill (compute-bound) - Mac Studio M5 Ultra: 6.4% faster on generation (bandwidth-bound) Time to first token - Spark 1.3s - Mac 2.9s Of course, the Mac M5 doesn't have optimized kernels

Ahmad

@TheAhmadOsman

Founder & CEO @OsmanticAI — Accelerating Opensource & Self-hosted / Local AI Adoption • I moderate GPUs on r/LocalLLaMA

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Ahmad@TheAhmadOsman

2026.09.24 22:28

Mac Studio M5 Ultra vs 2x DGX Spark for DeepSeek V4 Flash - DGX Sparks: 2.41x faster on prefill (compute-bound) - Mac Studio M5 Ultra: 6.4% faster on generation (bandwidth-bound) Time to first token - Spark 1.3s - Mac 2.9s Of course, the Mac M5 doesn't have optimized kernels