Would CUDA be a better path than Intel Arc A580 8GB for Qwen3.5 9B?

Often yes, if your goal is the easiest setup and the widest runtime support. Intel can offer attractive memory capacity, but CUDA still tends to win on tooling maturity, guides, kernels, and model coverage for local AI.

Can Qwen3.5 9B run on Intel Arc A580 8GB?

Q: What should I upgrade first if Qwen3.5 9B feels slow on Intel Arc A580 8GB?

Prefer CUDA if you want the path of least resistance. If your goal is maximum runtime coverage, easier troubleshooting, and better support for new local AI releases, CUDA is usually still the safer upgrade path.

YES — With Offload

C51Usable

Estimated from fit model

Qwen3.5 9B needs ~8.2 GB VRAM. Intel Arc A580 8GB has 8.0 GB. With Q4_K_M quantization, expect ~32 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: MediumStack: 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

Q4_K_M (Medium quality) — 8.2 GB, 32.2 tok/s, Runs with offload (needs ~0.2 GB host RAM)

8.2 GB required8.0 GB available

102% VRAM needed

0.2 GB over capacity — needs offload or smaller quantization

Fit status

Runs with offload (needs ~0.2 GB host RAM)

Decode

32.2 tok/s

TTFT

6019 ms

Safe context

12K

Memory

8.2 GB / 8.0 GB

Memory breakdown

Weights5.5 GB

KV Cache1.1 GB

Runtime0.9 GB

Headroom0.8 GB

See how fast it feels

See how fast it feelsQwen3.5 9B on Intel Arc A580 8GB
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: 32.2 tok/s decode · 6.0s TTFT (warm) · 80 tok/s prefill

What limits this setup

The raw memory story may look fine, but the software ecosystem is still a constraint here.

Very little memory headroom

You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.

Runtime ecosystem is narrower than CUDA

Intel GPUs can look attractive on memory per dollar, but local AI tooling, kernels, and model coverage are still broader and easier on CUDA today.

Best improvement path

Prefer CUDA if you want the path of least resistance

If your goal is maximum runtime coverage, easier troubleshooting, and better support for new local AI releases, CUDA is usually still the safer upgrade path.

Buy headroom, not only minimum fit

A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Runs with offload	45.7 tok/s	2311 ms	12K
Coding	C	Runs with offload (needs ~0.2 GB host RAM)	32.2 tok/s	6019 ms	12K
Agentic Coding	D	Very compromised (needs ~0.8 GB host RAM)	25.0 tok/s	11279 ms	12K
Reasoning	C	Runs with offload (needs ~0.2 GB host RAM)	32.2 tok/s	7113 ms	12K
RAG	D	Very compromised (needs ~0.8 GB host RAM)	25.0 tok/s

Quantization options

How Qwen3.5 9B (9B params) fits at each quantization level on Intel Arc A580 8GB (8.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.5 GB	Low	C54
Q3_K_S	3	4.4 GB	Low	C53
NVFP4Best for your GPU

Get started

Copy-paste commands to run Qwen3.5 9B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "lmstudio-community/Qwen3.5-9B-GGUF" \
  --hf-file "Qwen3.5-9B-GGUF-Q4_K_M.gguf" \
  -c 4096 -ngl 99

Upgrade options

Hardware that runs Qwen3.5 9B well

Intel Arc B570 10GBBudget pick

10 GB VRAM (+2)

Adds memory headroom for longer context windows and future model growth.37.4 tok/s decode

Adds memory headroom for longer context windows and future model growth.

~$219 MSRP

Intel Arc B580 12GBBest value

12 GB VRAM (+4)

Adds memory headroom for longer context windows and future model growth.39.9 tok/s decode

Adds memory headroom for longer context windows and future model growth.

~$249 MSRP

Intel Arc A770 16GBIntel upgrade

16 GB VRAM (+8)560 GB/s (+48)

Raises estimated decode speed by about 43%.45.9 tok/s decode

Raises estimated decode speed by about 43%.

Adds memory headroom for longer context windows and future model growth.

~$349 MSRP

Frequently asked questions

Can Intel Arc A580 8GB run Qwen3.5 9B?

Yes, Intel Arc A580 8GB can run Qwen3.5 9B with a C grade (Runs with offload (needs ~0.2 GB host RAM)). Expected decode speed: 32.2 tok/s.

How much VRAM does Qwen3.5 9B need?

Qwen3.5 9B (9B parameters) requires approximately 8.2 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen3.5 9B?

The recommended quantization for Qwen3.5 9B is Q4_K_M, which balances quality and memory efficiency.

What speed will Qwen3.5 9B run at on Intel Arc A580 8GB?

On Intel Arc A580 8GB, Qwen3.5 9B achieves approximately 32.2 tokens per second decode speed with a time-to-first-token of 6019ms using Q4_K_M quantization.

Can Intel Arc A580 8GB run Qwen3.5 9B for coding?

For coding workloads, Qwen3.5 9B on Intel Arc A580 8GB receives a C grade with 32.2 tok/s and 12K context.

What context window can Qwen3.5 9B use on Intel Arc A580 8GB?

On Intel Arc A580 8GB, Qwen3.5 9B can safely use up to 12K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

What should I upgrade first if Qwen3.5 9B feels slow on Intel Arc A580 8GB?

See all results for Intel Arc A580 8GB See all hardware for Qwen3.5 9B

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