Pyyan / Compare / RTX 5090 vs DGX Spark

RTX 5090 vs DGX Spark

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Local AI Hardware · verified 13 Aug 2026

RTX 5090NVIDIAcurrent
DGX SparkNVIDIAcurrent
3 slots left
SpecificationRTX 5090DGX Spark
SummaryBest consumer GPU for LLMs.Hard to recommend for most people.
Memory32GB GDDR7128GB LPDDR5x
Bandwidth1,792 GB/s273 GB/s
Price$2–3K$4,699
70B tok/s2.7
CategoryLocal AI HardwareLocal AI Hardware
OfficialNVIDIANVIDIA

Highlighted rows are where these differ.

RTX 5090

  • 32GB GDDR7
  • NVLink removed — two cards give ~1.4×, not 2×

Best for CUDA work.

Full spec sheet →

DGX Spark

  • 273 GB/s — a Mac Studio does twice that for less
  • Only buy for full CUDA parity at 128GB

Best for CUDA + multi-node only.

Full spec sheet →