Can I Run Nex-N2 on AMD Radeon RX 9070 XT?
作者： Jakub Rusinowski · 最后更新： 2026年9月29日
No — Nex-N2 doesn't fit the AMD Radeon RX 9070 XT's 16 GB. 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 |
Nex-N2 mini on the AMD Radeon RX 9070 XT: VRAM by quantization
| Quant | VRAM needed | Fits 16 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 71.7 GB | ✗ No | — | — |
| Q8_0 | 38.9 GB | ✗ No | — | — |
| Q6_K | 30.4 GB | ✗ No | — | — |
| Q5_K_M | 26.5 GB | ✗ No | — | — |
| Q4_K_M | 22.9 GB | ✗ No | — | — |
| Q3_K_M | 16.7 GB | ✗ No | — | — |
| Q2_K | 13.2 GB | ✓ Yes | 8K | — |
Assumes a 4K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. 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 23.8 GB ✗ · 32K 29.4 GB ✗ · 128K 52 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? Nex-N2 mini on 24 GB of system RAM, CPU only: runs, but it is tight.
Why It Does Not Fit
Every Nex-N2 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).
Nex-N2 needs ~21 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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FAQ
Nex-N2 on the AMD Radeon RX 9070 XT — does it fit?
No — Nex-N2 doesn't fit the AMD Radeon RX 9070 XT's 16 GB. The cheapest card that runs it is the NVIDIA GeForce RTX 5090 Laptop GPU (24 GB).
What GPU should I get instead to run Nex-N2?
The NVIDIA GeForce RTX 5090 Laptop GPU (24 GB VRAM) is the cheapest upgrade that fits it.
Every Nex-N2 size on the AMD Radeon RX 9070 XT
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| Nex-N2 Pro | 239.7 GB | Does not fit | — |
| Nex-N2 mini | 21.1 GB | Runs at Q2_K | — |
Nex-N2 on Other GPUs
- Nex-N2 on NVIDIA GeForce RTX 5080
- Nex-N2 on NVIDIA GeForce RTX 5070 Ti
- Nex-N2 on NVIDIA GeForce RTX 5060 Ti 16GB
- Nex-N2 on NVIDIA GeForce RTX 4080 Super
- Nex-N2 on NVIDIA GeForce RTX 4080
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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? | Nex-N2 Model Page | AMD Radeon RX 9070 XT GPU Page | Check Your Hardware