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NVIDIA-Nemotron-3-Nano-4B

Nemotron family · 4.0B params

3recorded runs
237.8best tok/s
1verified

Evidence: 1 sourced run · 2 awaiting review · 1 independent source · first recorded Jul 20, 2026 · last recorded Aug 25, 2026. What these labels mean.

What the NVIDIA-Nemotron-3-Nano-4B numbers mean

The fastest verified result on our board is 185.8 output tok/s on an RTX 5070 at Q4_K_M with a 32768-token context. That is about 5.4 ms per generated token — 500 tokens takes roughly 2.7 seconds. Prompt processing on the same record runs at 5377.5 tok/s, so a 2,000-token prompt is read in about 0.4 seconds. Peak VRAM was measured at 4.2 GB. Across the 3 records we hold for this model the range is 171.3–237.8 tok/s on 3 GPUs, because quantisation, context length and the engine build all move the number.

How much VRAM does NVIDIA-Nemotron-3-Nano-4B need?

NVIDIA-Nemotron-3-Nano-4B has 4.0B parameters. These estimates use the same formula as the VRAM calculator: weights, plus about 15% for a moderate-context KV cache and runtime overhead, plus a small engine floor.

QuantisationEstimated VRAMSmallest card that fits
Q4_K_M (4-bit)3.4 GB8 GB
Q8_0 (8-bit)5.7 GB8 GB
FP16 (16-bit)10.0 GB12 GB

Long contexts and large batches raise the real number — read the smallest card as "possible with a reduced context". Measured throughput is on the benchmark board.

Fastest GPUs for this model (best tok/s)
  1. RTX 5090237.8
  2. RTX 5070185.8
  3. RTX 3090171.3

Models with a similar footprint

ModelParamsQ4_K_M weights
gemma-3n-E4B-it-text4B2.2 GB
Phi-4-mini-reasoning4B2.2 GB
Qwen3-4B4B2.2 GB
Qwen3-4B-Thinking-25074B2.2 GB
Qwen3.5-4B4B2.2 GB
Qwen3.5-4B-MTP4B2.2 GB

Ranked by distance from NVIDIA-Nemotron-3-Nano-4B's parameter count. Full benchmark board.

All benchmarks Methodology

GPUModelQuantBackendCtx tok/sprompt tok/sVRAM GBSource
RTX 5070 · 12 GBNVIDIA-Nemotron-3-Nano-4BQ4_K_Mllama.cpp b10449 (0d9ceae1e38291035605613ab41a…32768185.8 ✓5377.54.2src
RTX 5090 · 32 GBNVIDIA-Nemotron-3-Nano-4BQ8_0lmstudio —2048237.8 …1173.5—src
RTX 3090 · 24 GBNVIDIA-Nemotron-3-Nano-4BQ4_K_Mllama.cpp —512171.3 …5608.80.0src
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