Can I Run MiniMax M3 on NVIDIA DGX Spark?
作者： Jakub Rusinowski · 最后更新： 2026年7月21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 NVIDIA DGX Spark'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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NVIDIA DGX Spark Specs
| VRAM | 128 GB |
| Memory Bandwidth | 273 GB/s |
MiniMax M3 428B-A23B on the NVIDIA DGX Spark: 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 NVIDIA DGX Spark: 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 NVIDIA DGX Spark 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
Is the NVIDIA DGX Spark enough to run MiniMax M3 locally?
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 NVIDIA DGX Spark's 128 GB leaves it ~135.6 GB short. The cheapest card that runs it is the Apple M5 Ultra (512 GB).
What's the cheapest GPU that runs 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 AMD Ryzen AI Max+ 395
Popular Models on the NVIDIA DGX Spark
VRAM Tier
Troubleshooting
- CUDA out of memory — why it happens and how to fix it
- Which GGUF quant should I download? (Q4 vs Q5 vs Q8)
Buying Guide
← Can I Run It? | MiniMax M3 Model Page | NVIDIA DGX Spark GPU Page | VRAM calculator | Check Your Hardware