Pyyan / Compare / RTX 3090 (used) vs RTX 5090

RTX 3090 (used) vs RTX 5090

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Local AI Hardware · verified 13 Aug 2026

RTX 3090 (used)NVIDIAcurrent
RTX 5090NVIDIAcurrent
3 slots left
SpecificationRTX 3090 (used)RTX 5090
SummaryBest value entry point.Best consumer GPU for LLMs.
Memory24GB32GB GDDR7
Bandwidth1,792 GB/s
Price~$900$2–3K
CategoryLocal AI HardwareLocal AI Hardware
OfficialNVIDIANVIDIA

Highlighted rows are where these differ.

RTX 3090 (used)

  • Handles models up to 32B
  • Last consumer card with NVLink

Best for getting started.

Full spec sheet →

RTX 5090

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

Best for CUDA work.

Full spec sheet →