Can Qwen 3 8B run on RTX 3090 Ti 24GB?

YES — Runs Great

S91Excellent

○Estimated from fit model

Qwen 3 8B needs ~10.7 GB VRAM. RTX 3090 Ti 24GB has 24.0 GB. With Q4_K_M quantization, expect ~112 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: HighStack: BasicBottleneck: 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) — 10.7 GB, 112.0 tok/s, Runs well

10.7 GB required24.0 GB available

45% VRAM used

Fit status

Runs well

Decode

112.0 tok/s

TTFT

1729 ms

Safe context

113K

Memory

10.7 GB / 24.0 GB

Memory breakdown

Weights4.9 GB

KV Cache2.2 GB

Runtime1.2 GB

Headroom2.4 GB

See how fast it feels

See how fast it feelsQwen 3 8B on RTX 3090 Ti 24GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step.

Given information:
 - Speed = 60 mph (miles per hour)
 - Time = 2.5 hours

Formula: Distance = Speed x Time

Calculation:
 Distance = 60 mph x 2.5 h
 = 150 miles

The train travels 150 miles.

Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time.

Breakdown:
 - First half: 1.25 hours at 60 mph = 75 miles
 - Stop: 20 minutes (no distance)
 - Second half: 1.25 hours at 60 mph = 75 miles

Total distance: 150 miles (same)
Total time: 2.5 h + 0.33 h = 2.83 hours
Average speed: 150 / 2.83 = 53 mph

The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 112.0 tok/s decode · 1.7s TTFT (warm) · 280 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	S	Runs well	112.0 tok/s	943 ms	113K
Coding	S	Runs well	112.0 tok/s	1729 ms	113K
Agentic Coding	S	Runs well	112.0 tok/s	2514 ms	113K
Reasoning	S	Runs well	112.0 tok/s	2043 ms	113K
RAG	S	Runs well	112.0 tok/s	3143 ms	113K

Quantization options

How Qwen 3 8B (8B params) fits at each quantization level on RTX 3090 Ti 24GB (24.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.1 GB	Low	A84
Q3_K_S	3	3.9 GB	Low	A85
NVFP4	4	4.5 GB	Medium	S85
Q4_K_M	4	4.9 GB	Medium	S85
Q5_K_M	5	5.8 GB	High	S86
Q6_K	6	6.6 GB	High	S86
Q8_0	8	8.6 GB	Very High	S88
F16Best for your GPU	16	16.4 GB	Maximum	S90

Get started

Copy-paste commands to run Qwen 3 8B on your machine.

Run

ollama run qwen3:8b

Your hardware

More models your RTX 3090 Ti 24GB can run

Model	Params	Grade	Decode
👁 Alibaba Qwen3-Coder 30B A3B Instruct	30.5B	S	108.2 tok/s
👁 Alibaba Qwen 3.5 27B	27B	S	46.9 tok/s
👁 Alibaba Qwen 3.6 27B	27B	S	47.1 tok/s
👁 Alibaba Qwen3-VL 30B A3B Instruct	30B	S	111.9 tok/s
👁 Alibaba Qwen 3.5 9B	9B	S	126 tok/s

Frequently asked questions

See all results for RTX 3090 Ti 24GB See all hardware for Qwen 3 8B

URL: https://willitrunai.com/can-run/qwen-3-8b-on-rtx-3090-ti-24gb