Can Phi 3 Mini 3.8B run on RTX 2080 Ti 11GB?

YES — With Offload

B69Good
Estimated from fit model

Phi 3 Mini 3.8B needs ~10.5 GB VRAM. RTX 2080 Ti 11GB has 11.0 GB. With Q4_K_M quantization, expect ~53 tok/s.

Runtime: OllamaCapacity: OffloadBandwidth: MediumStack: BasicBottleneck: 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) 10.5 GB, 53.2 tok/s, Runs with offload
10.5 GB required11.0 GB available
95% VRAM used

Fit status

Runs with offload

Decode

53.2 tok/s

TTFT

3639 ms

Safe context

17K

Memory

10.5 GB / 11.0 GB

Memory breakdown

Weights2.3 GB
KV Cache5.9 GB
Runtime1.2 GB
Headroom1.1 GB

See how fast it feels

See how fast it feelsPhi 3 Mini 3.8B on RTX 2080 Ti 11GB
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: 53.2 tok/s decode · 3.6s TTFT (warm) · 133 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

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.

Older PCIe generation

PCIe 3.0 is workable, but it compounds the penalty when you offload heavily or try to scale across multiple cards.

Best improvement 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

WorkloadGradeFitDecodeTTFTContext
ChatARuns well53.2 tok/s1985 ms17K
CodingBRuns with offload53.2 tok/s3639 ms17K
Agentic CodingFToo heavy52.9 tok/s5327 ms17K
ReasoningBRuns with offload53.2 tok/s4301 ms17K
RAGFToo heavy52.9 tok/s6659 ms17K

Quantization options

How Phi 3 Mini 3.8B (3.799999952316284B params) fits at each quantization level on RTX 2080 Ti 11GB (11.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
1.5 GB
LowB65
Q3_K_S
3
1.9 GB
LowB66
NVFP4
4
2.1 GB
MediumB66
Q4_K_M
4
2.3 GB
MediumB66
Q5_K_M
5
2.7 GB
HighB67
Q6_K
6
3.1 GB
HighB67
Q8_0
8
4.1 GB
Very HighB69
F16Best for your GPU
16
7.8 GB
MaximumB69

Get started

Copy-paste commands to run Phi 3 Mini 3.8B on your machine.

Run

ollama run phi3:mini

Upgrade-Optionen

Hardware, die Phi 3 Mini 3.8B gut ausführt

Frequently asked questions

Can RTX 2080 Ti 11GB run Phi 3 Mini 3.8B?

Yes, RTX 2080 Ti 11GB can run Phi 3 Mini 3.8B with a B grade (Runs with offload). Expected decode speed: 53.2 tok/s.

How much VRAM does Phi 3 Mini 3.8B need?

Phi 3 Mini 3.8B (3.799999952316284B parameters) requires approximately 10.5 GB of memory with Q4_K_M quantization.

What is the best quantization for Phi 3 Mini 3.8B?

The recommended quantization for Phi 3 Mini 3.8B is Q4_K_M, which balances quality and memory efficiency.

What speed will Phi 3 Mini 3.8B run at on RTX 2080 Ti 11GB?

On RTX 2080 Ti 11GB, Phi 3 Mini 3.8B achieves approximately 53.2 tokens per second decode speed with a time-to-first-token of 3639ms using Q4_K_M quantization.

Can RTX 2080 Ti 11GB run Phi 3 Mini 3.8B for coding?

For coding workloads, Phi 3 Mini 3.8B on RTX 2080 Ti 11GB receives a B grade with 53.2 tok/s and 17K context.

What context window can Phi 3 Mini 3.8B use on RTX 2080 Ti 11GB?

On RTX 2080 Ti 11GB, Phi 3 Mini 3.8B can safely use up to 17K tokens of context. The model's official context limit is 128K, but available memory constrains the safe maximum.

What should I upgrade first if Phi 3 Mini 3.8B feels slow on RTX 2080 Ti 11GB?

Buy headroom, not only minimum fit. A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

See all results for RTX 2080 Ti 11GBSee all hardware for Phi 3 Mini 3.8B
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