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

RTX 5090 vs RTX 3090 (used)

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Local AI Hardware · verified 13 Aug 2026

RTX 5090NVIDIAcurrent
RTX 3090 (used)NVIDIAcurrent
3 slots left
SpecificationRTX 5090RTX 3090 (used)
SummaryBest consumer GPU for LLMs.Best value entry point.
Memory32GB GDDR724GB
Bandwidth1,792 GB/s
Price$2–3K~$900
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 →

RTX 3090 (used)

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

Best for getting started.

Full spec sheet →