QwenQwen3-8B Instruct on NVIDIA GeForce RTX 4090
Yes — RTX 4090 runs Qwen3-8B Instruct excellently at Q8_0 — 83 tok/s. 24 GB VRAM with plenty of headroom.
Model Size
8.2B
Device VRAM
24 GB
Bandwidth
1008 GB/s
Quantization
Q8_0
Performance by Quantization
OwnRig currently has one published compatibility entry for Qwen3-8B Instruct on NVIDIA GeForce RTX 4090 at Q8_0. This is the best supported pairing we can stand behind today.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| Q8_0 | 83 tok/s | 72ms | ✓ Yes | Excellent | estimated |
Notes
Q8_0
Estimated from qwen-2-5-7b benchmarks.
About Qwen3-8B Instruct
Qwen3-8B Instruct (8.2B) is a chat, coding, ai coding, reasoning, multi-purpose model. Qwen 3 dense 8B instruct from Alibaba (~8.2B parameters, ~6.95B non-embedding). Capable chat, coding, and reasoning; 32K default context with 128K max. Apache 2.0.
View all Qwen3-8B Instruct hardware options →About NVIDIA GeForce RTX 4090
NVIDIA GeForce RTX 4090 has 24 GB at 1008 GB/s. Street price: $1,799.
See all models NVIDIA GeForce RTX 4090 can run →Builds with NVIDIA GeForce RTX 4090
Estimate method: Estimated from comparable model benchmarks. Reference hardware source: github.com (2026-03-14)
Performance varies by driver version, inference engine, quantization method, context length, and system configuration. Figures shown are estimates based on community benchmarks and may not reflect your exact setup. Product names are trademarks of their respective owners. OwnRig is independent and not affiliated with any hardware or AI model provider.