NVIDIA RTX Spark (N1X) 18-Core — Benchmarks & Specs

Bottom line: how fast is the NVIDIA RTX Spark (N1X) 18-Core?

At 1080p Ultra, the NVIDIA RTX Spark (N1X) 18-Core averages 249 fps in SuperTuxKart 1.5 (x64 build under emulation), per StorageReview. For local LLM inference it generates 55.1 tokens/sec running llama3.1:8b under llama.cpp (the source did not report the machine's memory configuration), per StorageReview. Unified memory is the binding constraint for local inference: the NVIDIA RTX Spark (N1X) 18-Core ships in configurations of up to 32 GB, per the manufacturer spec sheet, and a 8B model at 4-bit needs roughly 5 GB for its weights alone (8B parameters at ~4.85 bits per weight, per llama.cpp), so it runs only on configurations with more unified memory than that. In STREAM Triad it scores 120,272 MB/s, per StorageReview.

Every figure above is a row in the tables below, and each row links out to the review or public benchmark database the number was taken from; the memory ceiling and the weight-size estimate are not table rows and link to their sources inline. SpecPicks aggregates published measurements; it does not report first-party benchmark runs.