Can I Run Qwen 3 on AMD Radeon RX 7900 XTX?
Written by Jakub Rusinowski · Last updated July 12, 2026
Yes, but it's tight — Qwen 3 32B at Q4_K_M needs 22.8 GB at 8K context (19.8 GB weights + 3 GB KV cache/overhead), leaving ~1.2 GB of the AMD Radeon RX 7900 XTX's 24 GB, at ~27 tok/s (est.), with room for up to 8K context.
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AMD Radeon RX 7900 XTX Specs
| VRAM | 24 GB |
| Memory Bandwidth | 960 GB/s |
Qwen 3 32B on the AMD Radeon RX 7900 XTX: VRAM by quantization
| Quant | VRAM needed | Fits 24 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 68.5 GB | ✗ No | — | — |
| Q8_0 | 37.8 GB | ✗ No | — | Build for this |
| Q6_K | 29.8 GB | ✗ No | — | — |
| Q5_K_M | 26.2 GB | ✗ No | — | Build for this |
| Q4_K_M | 22.8 GB | ✓ Yes | 8K | Build for this |
| Q3_K_M | 16.9 GB | ✓ Yes | 32K | — |
| Q2_K | 13.7 GB | ✓ Yes | 32K | — |
Assumes an 8K-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 24 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 7900 XTX: 8K 22.8 GB · 32K 29.2 GB ✗ · 125K 54.2 GB ✗. Past 32K it no longer fits 24 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Qwen 3 32B on 32 GB of system RAM, CPU only: runs comfortably.
Qwen 3 Sizes That Fit the AMD Radeon RX 7900 XTX (at 8K context)
| Qwen 3 32B | Q4_K_M · 22.8 GB at 8K context · ~27 tok/s (est.) |
| Qwen 3 30B-A3B (MoE) | Q4_K_M · 20 GB at 8K context · ~136 tok/s (est.) |
| Qwen 3 14B | Q4_K_M · 11.1 GB at 8K context · ~53 tok/s (est.) |
| Qwen 3 8B | Q4_K_M · 7 GB at 8K context · ~81 tok/s (est.) |
At 2 hrs/day, buying (~$999) beats renting at $0.34/hr after about 4.1 years.
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
FAQ
Will Qwen 3 run on the AMD Radeon RX 7900 XTX?
Yes, but it's tight — Qwen 3 32B at Q4_K_M needs 22.8 GB at 8K context (19.8 GB weights + 3 GB KV cache/overhead), leaving ~1.2 GB of the AMD Radeon RX 7900 XTX's 24 GB, at ~27 tok/s (est.), with room for up to 8K context.
Which Qwen 3 variant fits best on the AMD Radeon RX 7900 XTX?
Qwen 3 32B at Q4_K_M quantization needs 22.8 GB at 8K context (19.8 GB weights + 3 GB KV cache/overhead), estimated ~27 tokens/sec, up to 8K context.
Every Qwen 3 size on the AMD Radeon RX 7900 XTX
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| Qwen 3 235B-A22B (MoE) | 144.3 GB | Does not fit | — |
| Qwen 3 32B | 22.8 GB | Runs | ~27 tok/s |
| Qwen 3 30B-A3B (MoE) | 20 GB | Runs | ~136 tok/s |
| Qwen 3 14B | 11.1 GB | Runs | ~53 tok/s |
| Qwen 3 8B | 7 GB | Runs | ~81 tok/s |
Qwen 3 on Other GPUs
Popular Models on the AMD Radeon RX 7900 XTX
VRAM Tier
Troubleshooting
- Ollama: "model requires more system memory than is available"
- Which GGUF quant should I download? (Q4 vs Q5 vs Q8)
Buying Guide
← Can I Run It? | Qwen 3 Model Page | AMD Radeon RX 7900 XTX GPU Page | VRAM calculator | Check Your Hardware