OpenMath-Nemotron-32B VRAM & Memory Requirements

Specific checkpoints with sourced architecture and weight files. GGUF Q4_K_M (mradermacher): 20.61 GiB–21.50 GiB at 8,192 tokens, 1 sequence, FP16 KV, llama.cpp.

This result is an estimate, not a measured trace.Not verifiedFile-backed weights

Publisher and provenance

PublisherNVIDIA
Hugging Facenvidia/OpenMath-Nemotron-32B
Revisionbc78382d1594995c5202c25d20630a10c10b9707
Total parameters32,763,876,352
Layers64
Query heads40
KV heads8 (gqa)
Head dimension128
Recorded context capability131,072
Completenesscomplete · full

Memory layers in this estimate

Artifact bytes, raw KV, engine extras, and total demand are separate. This is not a runtime trace.

Weight artifact: 18.49 GiB (19,851,334,912 bytes)
Raw KV cache: 2.00 GiB (2,147,483,648 bytes)
Engine extras / workspace: 0.13 GiB–1.01 GiB
Total estimated demand: 20.61 GiB–21.50 GiB

Published artifacts

Quantization	Selected files	Bytes	Engine	Evidence
BF16 safetensors bf16 Calculator: BF16 safetensors	7 safetensors shards Total selected bytes: 65,527,752,704 (61.03 GiB / 65.53 GB) First shard: model-00001-of-00007.safetensors Last shard: model-00007-of-00007.safetensors View all 7 shard files `model-00001-of-00007.safetensors` `model-00002-of-00007.safetensors` `model-00003-of-00007.safetensors` `model-00004-of-00007.safetensors` `model-00005-of-00007.safetensors` `model-00006-of-00007.safetensors` `model-00007-of-00007.safetensors`	65,527,752,704 (61.03 GiB / 65.53 GB)	`vllm, sglang, unspecified`	`file-metadata`
GGUF Q4_K_M (mradermacher) gguf-q4_k_m Calculator: GGUF Q4_K_M (mradermacher)	OpenMath-Nemotron-32B.Q4_K_M.gguf	19,851,334,912 (18.49 GiB / 19.85 GB)	`llama.cpp, ollama, unspecified`	`file-metadata`
GGUF Q5_K_M (mradermacher) gguf-q5_k_m Calculator: GGUF Q5_K_M (mradermacher)	OpenMath-Nemotron-32B.Q5_K_M.gguf	23,262,156,032 (21.66 GiB / 23.26 GB)	`llama.cpp, ollama, unspecified`	`file-metadata`
GGUF Q6_K (mradermacher) gguf-q6_k Calculator: GGUF Q6_K (mradermacher)	OpenMath-Nemotron-32B.Q6_K.gguf	26,886,153,472 (25.04 GiB / 26.89 GB)	`llama.cpp, ollama, unspecified`	`file-metadata`
GGUF Q8_0 (mradermacher) gguf-q8_0 Calculator: GGUF Q8_0 (mradermacher)	OpenMath-Nemotron-32B.Q8_0.gguf	34,820,883,712 (32.43 GiB / 34.82 GB)	`llama.cpp, ollama, unspecified`	`file-metadata`
INT4 theoretical	No published file	16,381,938,176 (theoretical)	—	theoretical

Memory by quantization and context

Concurrent sequences = 1. KV defaults to FP16. The range includes documented runtime extras for the listed engine. These figures use the same core as the interactive calculator.

Quantization	2,048 tokens	8,192 tokens	32,768 tokens
BF16 safetensors	62.15 GiB–64.04 GiB	63.65 GiB–65.59 GiB	69.65 GiB–71.77 GiB
GGUF Q4_K_M (mradermacher)	19.11 GiB–19.87 GiB	20.61 GiB–21.50 GiB	26.61 GiB–27.92 GiB
GGUF Q5_K_M (mradermacher)	22.29 GiB–23.11 GiB	23.79 GiB–24.74 GiB	29.79 GiB–31.16 GiB
GGUF Q6_K (mradermacher)	25.66 GiB–26.55 GiB	27.16 GiB–28.18 GiB	33.16 GiB–34.60 GiB
GGUF Q8_0 (mradermacher)	33.05 GiB–34.09 GiB	34.55 GiB–35.72 GiB	40.55 GiB–42.14 GiB
INT4 theoretical Theoretical rows are not downloadable artifacts.	15.88 GiB–20.81 GiB	17.38 GiB–22.69 GiB	23.38 GiB–30.07 GiB

Raw KV contribution

Standard GQA/MHA raw KV is 2 × layers × kvHeads × headDim × tokens × sequences × bytes per element. This page uses KV heads (8), not query heads (40). Using query heads would overstate this cache by 5×.

8,192 tokens, 1 sequence, FP16: 2,147,483,648 bytes (2.00 GiB)
32,768 tokens: 8,589,934,592 bytes (8.00 GiB)

Open the calculator with this model

Sources

OpenMath-Nemotron-32B model card
config.json — revision bc78382d1594995c5202c25d20630a10c10b9707
safetensors index — metadata.total_size=65527752704
Artifact repo mradermacher/OpenMath-Nemotron-32B-GGUF

Assumptions that affect this result

Requested context is within the recorded native window of 131072 tokens.
Full-resident weight estimates use total parameters, including inactive MoE experts.
Weight bytes come from the selected weight files only, not from every file in the repository.
Download file size is not peak GPU memory. Runtime layout, allocator padding, and KV are extra.
Counted files: OpenMath-Nemotron-32B.Q4_K_M.gguf.
Context budget is the number of cached tokens per sequence (prompt plus reserved generation).
Concurrent sequences share one model replica; weights are not multiplied by sequence count.
KV dtype is independent of weight quantization unless you change it.

Calculator

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Quantization

Device type

Hardware

Workload

Context length primarily affects KV cache memory.

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Runtime

Engine and KV cache type for this estimate.

EngineKV cache typeRecurrent / conv state dtype Include theoretical estimates (expert) Allow a substitute if the filter has no match

Workload

Overhead scenario and the prefill workspace.

Overhead scenario Include heavier prefill workspace

Topology

How the model is split across devices. Memory is not added together.

DeploymentIntra-replica splitDevice count

Replica count is an advanced deployment option. Quantity is nodes or GPUs, not replicas.

Replica groupsDevices per replica

Budget

System reserve and safety margin. An empty number keeps the previous value.

System / display reserve

GiB (2^30 bytes)

Budget already excludes system reserveExtra safety margin

Custom bits per weightDisplay unit

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Public Hugging Face repoRevision

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Total parametersActive parametersLayersQuery headsKV headsHead dimension

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