Can I Run Nemotron Cascade 2 on Apple M3 Max?
Autor: Jakub Rusinowski · Ostatnia aktualizacja: 29 września 2026
Yes, comfortably — Nemotron-Cascade 2 30B-A3B at Q4_K_M needs 21.7 GB at 8K context (19.1 GB weights + 2.6 GB KV cache/overhead), leaving ~74.3 GB of the Apple M3 Max's 96 GB usable memory, at ~60 tok/s (est.), with room for up to 256K context.
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Apple M3 Max Specs
| VRAM | 128 GB unified memory |
| Memory Bandwidth | 400 GB/s |
Nemotron-Cascade 2 30B-A3B on the Apple M3 Max: VRAM by quantization
| Quant | VRAM needed | Fits 128 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 65.8 GB | ✓ Yes | 128K | — |
| Q8_0 | 36.2 GB | ✓ Yes | 256K | Build for this |
| Q6_K | 28.5 GB | ✓ Yes | 256K | — |
| Q5_K_M | 25 GB | ✓ Yes | 256K | Build for this |
| Q4_K_M | 21.7 GB | ✓ Yes | 256K | Build for this |
| Q3_K_M | 16.1 GB | ✓ Yes | 256K | — |
| Q2_K | 13 GB | ✓ Yes | 256K | — |
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 of unified memory. 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 Apple M3 Max: 8K 21.7 GB · 32K 27.1 GB · 128K 48.9 GB. Every window this model publishes still fits 128 GB.
No compatible GPU? Nemotron-Cascade 2 30B-A3B on 24 GB of system RAM, CPU only: runs.
Nemotron Cascade 2 Sizes That Fit the Apple M3 Max (at 8K context)
| Nemotron-Cascade 2 30B-A3B | Q4_K_M · 21.7 GB at 8K context · ~60 tok/s (est.) |
Nemotron Cascade 2 needs ~22 GB but this GPU has 128 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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FAQ
Can I run Nemotron Cascade 2 on the Apple M3 Max?
Yes, comfortably — Nemotron-Cascade 2 30B-A3B at Q4_K_M needs 21.7 GB at 8K context (19.1 GB weights + 2.6 GB KV cache/overhead), leaving ~74.3 GB of the Apple M3 Max's 96 GB usable memory, at ~60 tok/s (est.), with room for up to 256K context.
What's the best Nemotron Cascade 2 size for the Apple M3 Max?
Nemotron-Cascade 2 30B-A3B at Q4_K_M quantization needs 21.7 GB at 8K context (19.1 GB weights + 2.6 GB KV cache/overhead), estimated ~60 tokens/sec, up to 256K context.
Nemotron Cascade 2 on Other GPUs
Popular Models on the Apple M3 Max
VRAM Tier
Troubleshooting
Buying Guide
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