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Llama-3-8B-Instruct · IQ4_XS
NVIDIA H100 80GB HBM380GBllama.cpp v0.52L2 Cross-framework verified
This page aggregates 1 real-world runs of Llama-3-8B-Instruct (IQ4_XS) on NVIDIA H100 80GB HBM3 with llama.cpp, contributed by 1 independent source platforms; metrics are averages of published measurements.
283.18 tok/s
Decode
Decode speed
981.02 tok/s
Prefill
Prefill speed
1.67 s
TTFT
Time to first token
14.53 GB
VRAM
VRAM usage
L2 Cross-framework verified
1
Measured runs
1
Independent sources
Other
Source platforms
16 days ago
Last verified
Performance
- llama.cpp · IQ3_S Decode 289.19 · Prefill 992.46 ·
- llama.cpp · IQ4_XS (current)Decode 283.18 · Prefill 981.02 ·
- vLLM · Q2_K Decode 349.23 · Prefill 1726.15 ·
Core figures
- Decode (avg)
- 283.18 tok/s
- Prefill (avg)
- 981.02 tok/s
- TTFT (avg)
- 1.67 s
- VRAM (avg)
- 14.53 GB
- MTP acceptance rate
- —
- TTFB
- 2.27 GB
- Power draw
- 566.9 W
Configuration
Member-level fields are taken from the most recent run
- Model
- Llama-3-8B-Instruct
- Quantization
- IQ4_XS
- Framework
- llama.cpp
- Version
- v0.52
- Context length
- 8192 tokens
- Batch size
- 512
- GPU layers
- 33
- Flash Attention
- On
Hardware
Nominal and measured figures are shown side by side; whether it runs is the reader's call
- GPU
- NVIDIA H100 80GB HBM3
- Nominal VRAM
- 80 GB
- Measured VRAM (avg)
- 14.53 GB
- OS
- Ubuntu 24.04
- Driver
- 565.57
- CUDA
- 12.8
- Power draw
- 566.9 W
Sources & evidence
1 measured records in total, each traceable to its original source
v0.52 · Ubuntu 24.04 · CUDA 12.8 · 8192 ctx
283.18 tok/s
Decode
981.02 tok/s
Prefill
1.67 s
TTFT
14.53 GB
VRAM
—
MTP
566.9 W
Power draw
L2 batch seed 2026-10-19: llama.cpp on hw_id=55 running model_id=69 at IQ4_XS