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Head-to-head · Nemotron 3

Nemotron 3 Super 120B-A12B vs Nemotron 3 Ultra 550B-A55B

Nemotron 3 Super 120B-A12B needs ~80.3 GB at Q4_K_M; Nemotron 3 Ultra 550B-A55B needs ~341 GB. That ~260.7 GB gap decides which hardware runs each; they differ on 2 of the 14 devices below.

Spec Nemotron 3 Super 120B-A12B Nemotron 3 Ultra 550B-A55B
Parameters120B MoE550B MoE
Memory at Q4_K_M~80.3 GB~341 GB
Context window256k256k
LMArenanot rankednot ranked
Licensenvidia-nemotron-open-model-licenseOpenMDW-1.1

Which devices run each

Device Nemotron 3 Super 120B-A12B Nemotron 3 Ultra 550B-A55B
Apple M1 (8GB) No No
iPhone 16 No No
iPhone 17 No No
Samsung Galaxy S24 Ultra No No
iPhone Air No No
Nvidia GeForce RTX 4060 Ti (16GB) No No
iPad Pro M4 (16GB, 1TB/2TB config) No No
Apple M5 (16GB) No No
Apple M3 Pro (18GB) No No
Nvidia GeForce RTX 4090 (24GB) No No
Nvidia GeForce RTX 5090 (32GB) No No
Apple M4 Pro (48GB) No No
Apple M4 Max (128GB) Yes No
Apple M3 Ultra (256GB) Yes No

A representative spread across the memory range. Tap a verdict for the full breakdown.

Size at each quantization

Quant Nemotron 3 Super 120B-A12B Nemotron 3 Ultra 550B-A55B
Q2_K 50.3 GB* 230.3 GB*
Q3_K_M 58.7 GB* 268.8 GB*
Q4_K_M 76.87 GB 334.55 GB
Q5_K_M 85.5 GB* 391.9 GB*
Q6_K 98.4 GB* 451 GB*
Q8_0 119.65 GB 544.13 GB
FP16 224.93 GB 1100 GB*

* 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 Super 120B-A12B runs on lighter hardware at ~80.3 GB with more headroom and faster responses. Check each against your exact device: what runs Nemotron 3 Super 120B-A12B · what runs Nemotron 3 Ultra 550B-A55B.

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FAQ

What is the difference in memory between Nemotron 3 Super 120B-A12B and Nemotron 3 Ultra 550B-A55B?

At Q4_K_M, Nemotron 3 Super 120B-A12B needs about 80.3 GB and Nemotron 3 Ultra 550B-A55B needs about 341 GB, a difference of ~260.7 GB.

Should I run Nemotron 3 Super 120B-A12B 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 Super 120B-A12B (~80.3 GB) for lighter hardware, faster responses, and more memory headroom.

Full breakdowns: Nemotron 3 Super 120B-A12B · Nemotron 3 Ultra 550B-A55B · all models × devices.

Sources

Memory figures are estimates at Q4_K_M, validated 2026-08-03. See methodology.