Can Llama 3.2 1B Instruct Q8 0 run on RTX 5080 16GB?

YES — Runs Great

C42Usable

Estimated from fit model

Llama 3.2 1B Instruct Q8 0 needs ~3.4 GB VRAM. RTX 5080 16GB has 16.0 GB. With Q6_K quantization, expect ~19 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q6_K (High quality) — 3.4 GB, 19.0 tok/s, Runs well

3.4 GB required16.0 GB available

21% VRAM used

Fit status

Runs well

Decode

19.0 tok/s

TTFT

10189 ms

Safe context

1.7M

Memory

3.4 GB / 16.0 GB

Memory breakdown

Weights0.8 GB

KV Cache0.1 GB

Runtime0.9 GB

Headroom1.6 GB

See how fast it feels

See how fast it feelsLlama 3.2 1B Instruct Q8 0 on RTX 5080 16GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.

When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.

Key benefits of running locally:
  - Full privacy: your prompts never leave your machine
  - No per-token cost or rate limits
  - Works offline once the model is downloaded
  - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:

  Model size     Q4 (4-bit)    Q8 (8-bit)    FP16
  7B params      ~4.3 GB       ~7.5 GB       ~14 GB
  13B params     ~7.9 GB       ~13.9 GB      ~26 GB
  70B params     ~42.7 GB      ~74.9 GB      ~140 GB

Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 19.0 tok/s decode · 10.2s TTFT (warm) · 48 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Runs well	19.0 tok/s	5558 ms	1.0M
Coding	C	Runs well	19.0 tok/s	10189 ms	1.7M
Agentic Coding	C	Runs well	19.0 tok/s	14821 ms	1.7M
Reasoning	C	Runs well	19.0 tok/s	12042 ms	1.7M
RAG	C	Runs well	19.0 tok/s	18526 ms	1.7M

Quantization options

How Llama 3.2 1B Instruct Q8 0 (1B params) fits at each quantization level on RTX 5080 16GB (16.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	0.4 GB	Low	C45
Q3_K_S	3	0.5 GB	Low	C46
NVFP4	4

Get started

Copy-paste commands to run Llama 3.2 1B Instruct Q8 0 on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "hugging-quants/Llama-3.2-1B-Instruct-Q8_0-GGUF" \
  --hf-file "Llama-3.2-1B-Instruct-Q8_0-GGUF-Q6_K.gguf" \
  -c 4096 -ngl 99

Frequently asked questions

Can RTX 5080 16GB run Llama 3.2 1B Instruct Q8 0?

Yes, RTX 5080 16GB can run Llama 3.2 1B Instruct Q8 0 with a C grade (Runs well). Expected decode speed: 19.0 tok/s.

How much VRAM does Llama 3.2 1B Instruct Q8 0 need?

Llama 3.2 1B Instruct Q8 0 (1B parameters) requires approximately 3.4 GB of memory with Q6_K quantization.

What is the best quantization for Llama 3.2 1B Instruct Q8 0?

The recommended quantization for Llama 3.2 1B Instruct Q8 0 is Q6_K, which balances quality and memory efficiency.

What speed will Llama 3.2 1B Instruct Q8 0 run at on RTX 5080 16GB?

On RTX 5080 16GB, Llama 3.2 1B Instruct Q8 0 achieves approximately 19.0 tokens per second decode speed with a time-to-first-token of 10189ms using Q6_K quantization.

Can RTX 5080 16GB run Llama 3.2 1B Instruct Q8 0 for coding?

For coding workloads, Llama 3.2 1B Instruct Q8 0 on RTX 5080 16GB receives a C grade with 19.0 tok/s and 1.7M context.

What context window can Llama 3.2 1B Instruct Q8 0 use on RTX 5080 16GB?

On RTX 5080 16GB, Llama 3.2 1B Instruct Q8 0 can safely use up to 1.7M tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for RTX 5080 16GB See all hardware for Llama 3.2 1B Instruct Q8 0

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