Autor: Jakub Rusinowski · Ostatnia aktualizacja: 11 września 2026
Not at Q4_K_M — that needs 18.4 GB and the AMD Radeon RX 9070 XT has 16 GB. Drop to Q3_K_M and it fits in 14.6 GB, with up to 8K of context.
Get a personalized upgrade path →
| Model | Qwen 3 30B-A3B (MoE) |
| Parameters | 30B (3B active) |
| Quantization | Q4_K_M |
| VRAM needed | 18.4 GB |
| AMD Radeon RX 9070 XT VRAM | 16 GB |
| Verdict | Runs at a lower quant |
| Fits at | Q3_K_M (14.6 GB) |
| Max context | 8K |
| Quant | VRAM needed | Fits 16 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 62.2 GB | ✗ No | — | — |
| Q8_0 | 33.6 GB | ✗ No | — | Build for this |
| Q6_K | 26.2 GB | ✗ No | — | — |
| Q5_K_M | 22.8 GB | ✗ No | — | — |
| Q4_K_M | 19.6 GB | ✗ No | — | Build for this |
| Q3_K_M | 14.2 GB | ✓ Yes | 16K | — |
| Q2_K | 11.2 GB | ✓ Yes | 32K | — |
Assumes a 4K-token context with an f16 KV cache. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 16 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the AMD Radeon RX 9070 XT: 8K 20 GB ✗ · 32K 22.4 GB ✗ · 125K 31.8 GB ✗. Past 8K it no longer fits 16 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
Quantize to Q3_K_M. That is the cheapest fix — it costs some quality but no money.
No compatible GPU? Qwen 3 on 8 GB of system RAM, CPU only: runs.
Running Qwen 3 30B-A3B (MoE) on this card:
Qwen 3 30B-A3B (MoE) needs ~18 GB but this GPU has 16 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
Affiliate links — we may earn a commission if you sign up, at no extra cost to you.
Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
All Qwen 3 sizes on the AMD Radeon RX 9070 XT | Qwen 3 30B-A3B (MoE) model page | AMD Radeon RX 9070 XT GPU page | Check your hardware