Can I Run Llama 3.3 on AMD Radeon RX 9070 XT?
作者： Jakub Rusinowski · 最后更新： 2026年7月12日
No — Llama 3.3 doesn't fit the AMD Radeon RX 9070 XT's 16 GB; you're short by ~9.2 GB even at Q2_K. The cheapest card that runs it is the NVIDIA GeForce RTX 5090 Laptop GPU (24 GB).
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AMD Radeon RX 9070 XT Specs
| VRAM | 16 GB |
| Memory Bandwidth | 640 GB/s |
Llama 3.3 70B Instruct on the AMD Radeon RX 9070 XT: VRAM by quantization
| Quant | VRAM needed | Fits 16 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 142.1 GB | ✗ No | — | — |
| Q8_0 | 76.5 GB | ✗ No | — | — |
| Q6_K | 59.5 GB | ✗ No | — | — |
| Q5_K_M | 51.8 GB | ✗ No | — | — |
| Q4_K_M | 44.4 GB | ✗ No | — | — |
| Q3_K_M | 32 GB | ✗ No | — | — |
| Q2_K | 25.2 GB | ✗ No | — | — |
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 Q2_K_XS (Tight) on the AMD Radeon RX 9070 XT: 8K 23.7 GB ✗ · 32K 31.7 GB ✗ · 128K 64 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.
No compatible GPU? Llama 3.3 70B Instruct on 256 GB of system RAM, CPU only: runs, but too slowly to be worth it.
Why It Does Not Fit
Every Llama 3.3 variant requires more VRAM than the AMD Radeon RX 9070 XT provides (16 GB).
Nearest GPU That Fits
NVIDIA GeForce RTX 5090 Laptop GPU (24 GB VRAM).
Llama 3.3 needs ~20 GB but this GPU has 16 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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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 Llama 3.3 run on the AMD Radeon RX 9070 XT?
No — Llama 3.3 doesn't fit the AMD Radeon RX 9070 XT's 16 GB; you're short by ~9.2 GB even at Q2_K. The cheapest card that runs it is the NVIDIA GeForce RTX 5090 Laptop GPU (24 GB).
What GPU should I get instead to run Llama 3.3?
The NVIDIA GeForce RTX 5090 Laptop GPU (24 GB VRAM) is the cheapest upgrade that fits it.
Llama 3.3 on Other GPUs
- Llama 3.3 on NVIDIA GeForce RTX 5080
- Llama 3.3 on NVIDIA GeForce RTX 5070 Ti
- Llama 3.3 on NVIDIA GeForce RTX 5060 Ti 16GB
- Llama 3.3 on NVIDIA GeForce RTX 4080 Super
- Llama 3.3 on NVIDIA GeForce RTX 4080
Popular Models on the AMD Radeon RX 9070 XT
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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? | Llama 3.3 Model Page | AMD Radeon RX 9070 XT GPU Page | Check Your Hardware