willitrun·ai

Can Qwen3.5 4B run on RTX 4060 Ti 16GB?

YES — Runs Great

C48Usable
Estimated from fit model

Qwen3.5 4B needs ~5.4 GB VRAM. RTX 4060 Ti 16GB has 16.0 GB. With Q4_K_M quantization, expect ~64 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: LowStack: StandardBottleneck: Balanced
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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) 5.4 GB, 64.0 tok/s, Runs well
5.4 GB required16.0 GB available
34% VRAM used

Fit status

Runs well

Decode

64.0 tok/s

TTFT

3025 ms

Safe context

378K

Memory

5.4 GB / 16.0 GB

Memory breakdown

Weights2.4 GB
KV Cache0.5 GB
Runtime0.9 GB
Headroom1.6 GB

See how fast it feels

See how fast it feelsQwen3.5 4B on RTX 4060 Ti 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: 64.0 tok/s decode · 3.0s TTFT (warm) · 160 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

WorkloadGradeFitDecodeTTFTContext
ChatCRuns well64.0 tok/s1650 ms378K
CodingCRuns well64.0 tok/s3025 ms378K
Agentic CodingCRuns well64.0 tok/s4400 ms378K
ReasoningCRuns well64.0 tok/s3575 ms378K
RAGCRuns well64.0 tok/s5500 ms378K

Inference speed

Qwen3.5 4B inference speed — tokens per second by GPU & Mac

Estimated decode speed (tokens/sec) for Qwen3.5 4B at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~76 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.

GPU / MacMemoryQuantSpeed (tok/s)Fits?
NVIDIARTX 5090 32GB
32 GBQ4_K_M76.0Fits
NVIDIARTX 4090 24GB
24 GBQ4_K_M64.0Fits
NVIDIARTX 4080 Super 16GB
16 GBQ4_K_M64.0Fits
NVIDIARTX 3090 24GB
24 GBQ4_K_M56.0Fits
NVIDIARTX 4070 12GB
12 GBQ4_K_M56.0Fits
NVIDIARTX 3060 12GB
12 GBQ4_K_M56.0Fits
NVIDIARTX 4060 8GB
8 GBQ4_K_M56.0Fits
RX 7900 XTX 24GB
24 GBQ4_K_M56.0Fits
MacBook Pro M4 Max 128GB
128 GBQ4_K_M56.0Fits
Mac Studio M3 Ultra 256GB
256 GBQ4_K_M56.0Fits
Mac Studio M2 Ultra 128GB
128 GBQ4_K_M56.0Fits
Mac Studio M1 Ultra 128GB
128 GBQ4_K_M56.0Fits
MacBook Pro M4 Max 64GB
64 GBQ4_K_M56.0Fits
MacBook Pro M3 Max 64GB
64 GBQ4_K_M56.0Fits
MacBook Pro M1 Max 64GB
64 GBQ4_K_M56.0Fits
MacBook Pro M4 Pro 48GB
48 GBQ4_K_M56.0Fits

Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.

Quantization options

How Qwen3.5 4B (4B params) fits at each quantization level on RTX 4060 Ti 16GB (16.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
1.6 GB
LowC46
Q3_K_S
3
2.0 GB
LowC46
NVFP4
4
2.2 GB
MediumC47
Q4_K_M
4
2.4 GB
MediumC47
Q5_K_M
5
2.9 GB
HighC47
Q6_K
6
3.3 GB
HighC48
Q8_0
8
4.3 GB
Very HighC48
F16Best for your GPU
16
8.2 GB
MaximumC52

Get started

Copy-paste commands to run Qwen3.5 4B on your machine.

Run

lms load hf-unsloth--qwen3-5-4b-gguf && lms server start

Opções de upgrade

Hardware que roda bem Qwen3.5 4B

Frequently asked questions

Can RTX 4060 Ti 16GB run Qwen3.5 4B?

Yes, RTX 4060 Ti 16GB can run Qwen3.5 4B with a C grade (Runs well). Expected decode speed: 64.0 tok/s.

How much VRAM does Qwen3.5 4B need?

Qwen3.5 4B (4B parameters) requires approximately 5.4 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen3.5 4B?

The recommended quantization for Qwen3.5 4B is Q4_K_M, which balances quality and memory efficiency.

What speed will Qwen3.5 4B run at on RTX 4060 Ti 16GB?

On RTX 4060 Ti 16GB, Qwen3.5 4B achieves approximately 64.0 tokens per second decode speed with a time-to-first-token of 3025ms using Q4_K_M quantization.

Can RTX 4060 Ti 16GB run Qwen3.5 4B for coding?

For coding workloads, Qwen3.5 4B on RTX 4060 Ti 16GB receives a C grade with 64.0 tok/s and 378K context.

What context window can Qwen3.5 4B use on RTX 4060 Ti 16GB?

On RTX 4060 Ti 16GB, Qwen3.5 4B can safely use up to 378K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for RTX 4060 Ti 16GBSee all hardware for Qwen3.5 4B
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<iframe src="https://willitrunai.com/embed/hf-unsloth--qwen3-5-4b-gguf-on-rtx-4060-ti-16gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

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