Can I Run MiniMax M3 on AMD Ryzen AI Max+ 395?
作者： Jakub Rusinowski · 最后更新： 2026年7月12日
No — MiniMax M3 428B-A23B at Q4_K_M needs 263.6 GB at 8K context (258.4 GB weights + 5.2 GB KV cache/overhead), and the AMD Ryzen AI Max+ 395's 128 GB leaves it ~135.6 GB short. The cheapest card that runs it is the Apple M5 Ultra (512 GB).
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AMD Ryzen AI Max+ 395 Specs
| VRAM | 128 GB |
| Memory Bandwidth | 256 GB/s |
MiniMax M3 428B-A23B on the AMD Ryzen AI Max+ 395: VRAM by quantization
| Quant | VRAM needed | Fits 128 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 861.2 GB | ✗ No | — | — |
| Q8_0 | 459.9 GB | ✗ No | — | — |
| Q6_K | 356.1 GB | ✗ No | — | — |
| Q5_K_M | 308.5 GB | ✗ No | — | — |
| Q4_K_M | 263.6 GB | ✗ No | — | — |
| Q3_K_M | 187.6 GB | ✗ No | — | — |
| Q2_K | 145.9 GB | ✗ No | — | — |
Assumes an 8K-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 128 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 Ryzen AI Max+ 395: 8K 263.6 GB ✗ · 32K 276.7 GB ✗ · 128K 329 GB ✗. Past 8K it no longer fits 128 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? MiniMax M3 428B-A23B on 192 GB of system RAM, CPU only: runs, but it is tight.
Why It Does Not Fit
Every MiniMax M3 variant requires more VRAM than the AMD Ryzen AI Max+ 395 provides (128 GB).
Nearest GPU That Fits
Apple M5 Ultra (512 GB VRAM).
MiniMax M3 needs ~264 GB but this GPU has 128 GB. Rent a 8× H100 (640 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 MiniMax M3 run on the AMD Ryzen AI Max+ 395?
No — MiniMax M3 428B-A23B at Q4_K_M needs 263.6 GB at 8K context (258.4 GB weights + 5.2 GB KV cache/overhead), and the AMD Ryzen AI Max+ 395's 128 GB leaves it ~135.6 GB short. The cheapest card that runs it is the Apple M5 Ultra (512 GB).
What GPU should I get instead to run MiniMax M3?
The Apple M5 Ultra (512 GB VRAM) is the cheapest upgrade that fits it.
MiniMax M3 on Other GPUs
- MiniMax M3 on Apple M4 Max
- MiniMax M3 on Apple M3 Max
- MiniMax M3 on Apple M1 Ultra
- MiniMax M3 on Apple M5 Max
- MiniMax M3 on NVIDIA DGX Spark
Popular Models on the AMD Ryzen AI Max+ 395
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? | MiniMax M3 Model Page | AMD Ryzen AI Max+ 395 GPU Page | VRAM calculator | Check Your Hardware