DeepSeek V4 Flash Local Test: A Win for DGX Spark Performance and Value
Porespellar · reddit · 2026-08-11
The author argues that the DeepSeek V4 Flash 0731 model is the 'killer app' that will drive sales of NVIDIA GB10-based systems like the DGX Spark. With solid NVFP4 support, the model runs exceptionally well on a 2x Spark cluster.
Key Test Results:
- Speed & Capability: Achieves 60 tokens/s with specific vLLM recipes, supports a 1M context window, and excels in agentic coding tasks.
- Hardware Comparison: DGX Spark beats Strix and Apple M4/M5 devices in prompt processing speed, which is crucial for agent workflows. Although Spark has memory bandwidth limits, current speeds largely compensate for it.
- Market Observation: As software support matures, the author's buyer's remorse dropped from 50% to 0%. Anticipates potential market scarcity for Spark devices as DeepSeek's performance becomes more widely recognized.
Related event: DeepSeek V4 Flash Passes 22 Coding Tests on Dual DGX Spark Cluster(2 posts)→
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