Can I Run Qwen3.8 on NVIDIA GeForce RTX 3090?

Written by Jakub Rusinowski · Last updated September 6, 2026

Yes, comfortably — you'll have ~7.2 GB of headroom running Qwen3.8 27B at Q4_K_M (16.772175 GB, ~31 tok/s (est.)) with room for up to 16K context.

Buy This HardwareNVIDIA GeForce RTX 3090 24GB — 24 GB VRAM · 350 W board powerDeploy in the Cloud NowRTX 3090 on RunPod — from $0.46/hr · rate checked 2026-08

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NVIDIA GeForce RTX 3090 24GB
24 GB VRAM · 350 W board power
2026 prices are volatile — check the current listing.
Check price on Amazon

NVIDIA GeForce RTX 3090 Specs

VRAM24 GB
Memory Bandwidth936 GB/s

Qwen3.8 27B on the NVIDIA GeForce RTX 3090: VRAM by quantization

QuantVRAM neededFits 24 GB?Max context
F1657.2 GB✗ No
Q8_031.2 GB✗ No
Q6_K24.5 GB✗ No
Q5_K_M21.4 GB✓ Yes16K
Q4_K_M18.4 GB✓ Yes16K
Q3_K_M13.5 GB✓ Yes32K
Q2_K10.8 GB✓ Yes64K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 24 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Qwen3.8 Sizes That Fit the NVIDIA GeForce RTX 3090

Qwen3.8 27BQ4_K_M · 16.772175 GB · ~31 tok/s (est.)
Buy vs. rent Qwen3.8
Buy the GPU
~$1,499
NVIDIA GeForce RTX 3090 · MSRP
Rent by the hour
from $0.34/hr
RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$1,499) beats renting at $0.34/hr after about 6.1 years.

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RunPod $0.34/hr
Rent on RunPod →
Vast.ai $0.35/hr · typical low · varies
Rent on Vast.ai →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Can I run Qwen3.8 on the NVIDIA GeForce RTX 3090?

Yes, comfortably — you'll have ~7.2 GB of headroom running Qwen3.8 27B at Q4_K_M (16.772175 GB, ~31 tok/s (est.)) with room for up to 16K context.

What's the best Qwen3.8 size for the NVIDIA GeForce RTX 3090?

Qwen3.8 27B at Q4_K_M quantization (16.772175 GB), estimated ~31 tokens/sec, up to 16K context.

Every Qwen3.8 size on the NVIDIA GeForce RTX 3090

SizeVRAMVerdictSpeed
Qwen3.8-Max1449.0 GBDoes not fit
Qwen3.8 27B16.8 GBRuns~31 tok/s

Qwen3.8 on Other GPUs

Popular Models on the NVIDIA GeForce RTX 3090

VRAM Tier

Troubleshooting

Buying Guide

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