HARDWARE FIT CHECK • Meta Llama 4 Scout (109B-A17B MoE) + NVIDIA H100 SXM (80GB HBM3 Cloud GPU)71.66 GB / 80 GB VRAM

Can I Run Meta Llama 4 Scout (109B-A17B MoE) on NVIDIA H100 SXM (80GB HBM3 Cloud GPU)?

Full VRAM footprint analysis, tokens/sec generation benchmark, and copy-paste Ollama & vLLM runtime commands for running Meta Llama 4 Scout (109B-A17B MoE) (109B) on NVIDIA H100 SXM (80GB HBM3 Cloud GPU) (80 GB).

⚡ Fits in VRAM (Tight Headroom — Use Q8/Q4 KV Cache)71.66 GB (90%)~219 t/s

Model & Target Hardware

interactive
Long-Context Codebase Indexing & Multi-Document Analysis
Meta Llama 4 Scout (109B-A17B MoE) on NVIDIA H100 SXM (80GB HBM3 Cloud GPU)

⚡ Tight Fit — Runs 100% on GPU (Low Headroom)

⚡ TIGHT FIT
Required VRAM
71.66 GB
90% of hardware capacity (80 GB)
Est. Decode Speed
~219 tok/s
17B active params @ 3350 GB/s
Available Headroom
+8.34 GB
Safe for OS display & full context
Memory Allocation & Headroom
71.66 GB allocated of 80 GB capacity
90% utilized
Weights: 65.4 GB
KV: (32K): 3.22 GB
Overhead: 3.04 GB
Free Headroom: +8.34 GB
⚡ Architecture & Throughput Transparency: Single-user decode speed (~219 tok/s) is memory-bandwidth bound at batch size = 1 on NVIDIA H100 SXM (80GB HBM3 Cloud GPU) (3350 GB/s). Prompt prefill / TTFT (~3,176 tok/s) is compute-bound and utilizes GPU Tensor cores. Actual latency varies with FlashAttention-2 and runtime engine (Ollama/vLLM/llama.cpp).
OLLAMA_FLASH_ATTENTION=1 OLLAMA_KV_CACHE_TYPE=q8_0 ollama run llama4:scout

Quantization Precision Matrix

32K ctx • KV: Q8_0
QuantizationWeightsKV CacheTotal VRAMEst. SpeedFit Status
FP1616 bpw218 GB3.22 GB229.6 GB (287%)0 t/sOOM
Q8_08.5 bpw115.54 GB3.22 GB123.55 GB (154%)0 t/sOOM
Q6_K6.56 bpw89.38 GB3.22 GB96.48 GB (121%)~36 t/sPARTIAL
Q5_K_M5.68 bpw77.39 GB3.22 GB84.07 GB (105%)~41 t/sPARTIAL
Q4_K_M4.8 bpw65.4 GB3.22 GB71.66 GB (90%)~219 t/sFITS
FP44.25 bpw57.77 GB3.22 GB63.76 GB (80%)~246 t/sFITS
IQ3_XS3.3 bpw44.69 GB3.22 GB50.22 GB (63%)~310 t/sFITS

Local Hardware Configurations & Pricing

High-bandwidth VRAM specs and current market prices
Datacenter Cloud GPU80 GB VRAM

NVIDIA H100 SXM (80GB HBM3 Cloud GPU)

Production vLLM high-concurrency serving & 70B FP8 inference

3350 GB/s700W TDP
Consumer GPU32 GB VRAM

NVIDIA GeForce RTX 5090 (32GB GDDR7)

Maximum tokens/sec on 27B–35B models & Blackwell FP4 quantization

1792 GB/s575W TDP
Consumer GPU24 GB VRAM

NVIDIA GeForce RTX 4090 (24GB GDDR6X)

The 24GB CUDA enthusiast standard for 14B–32B Q4_K_M models

1008 GB/s450W TDP
Multi-GPU Rig48 GB VRAM

2x NVIDIA RTX 3090 Dual Rig (48GB Total VRAM)

Best price-to-VRAM homelab rig for 70B Q4_K_M & Qwen 3.8 27B Q8

936 GB/s700W TDP

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