Head-to-head · Nemotron 3
Nemotron 3 Nano 30B-A3B vs Nemotron 3 Ultra 550B-A55B
Nemotron 3 Nano 30B-A3B needs ~25.1 GB at Q4_K_M; Nemotron 3 Ultra 550B-A55B needs ~341 GB. That ~315.9 GB gap decides which hardware runs each; they differ on 4 of the 14 devices below.
Which devices run each
A representative spread across the memory range. Tap a verdict for the full breakdown.
Size at each quantization
* derived from bits-per-weight; unstarred sizes are measured GGUF files.
Bottom line
The larger Nemotron 3 Ultra 550B-A55B needs ~341 GB; Nemotron 3 Nano 30B-A3B runs on lighter hardware at ~25.1 GB with more headroom and faster responses. Check each against your exact device: what runs Nemotron 3 Nano 30B-A3B · what runs Nemotron 3 Ultra 550B-A55B.
More Nemotron 3 comparisons
- Nemotron 3 Nano 4B vs Nemotron 3 Nano 30B-A3B
- Nemotron 3 Nano 4B vs Nemotron 3 Ultra 550B-A55B
- Nemotron 3 Nano 30B-A3B vs Nemotron 3 Super 120B-A12B
- Nemotron 3 Nano 30B-A3B vs Nemotron Cascade 2 30B-A3B
- Nemotron Cascade 2 30B-A3B vs Nemotron 3 Ultra 550B-A55B
- Nemotron 3 Super 120B-A12B vs Nemotron 3 Ultra 550B-A55B
FAQ
What is the difference in memory between Nemotron 3 Nano 30B-A3B and Nemotron 3 Ultra 550B-A55B?
At Q4_K_M, Nemotron 3 Nano 30B-A3B needs about 25.1 GB and Nemotron 3 Ultra 550B-A55B needs about 341 GB, a difference of ~315.9 GB.
Should I run Nemotron 3 Nano 30B-A3B or Nemotron 3 Ultra 550B-A55B?
Run Nemotron 3 Ultra 550B-A55B if your hardware has the ~341 GB it needs and you want maximum quality; run Nemotron 3 Nano 30B-A3B (~25.1 GB) for lighter hardware, faster responses, and more memory headroom.
Full breakdowns: Nemotron 3 Nano 30B-A3B · Nemotron 3 Ultra 550B-A55B · all models × devices.
Sources
Memory figures are estimates at Q4_K_M, validated 2026-08-03. See methodology.