Written by Jakub Rusinowski · Last updated July 16, 2026
No — Inkling doesn't fit the Apple M3 Ultra's 512 GB.
As an Amazon Associate we earn from qualifying purchases. Cloud GPU links are referral links — we may earn a commission at no extra cost to you.
| VRAM | 512 GB unified memory |
| Memory Bandwidth | 819 GB/s |
| Quant | VRAM needed | Fits 512 GB? | Max context |
|---|---|---|---|
| F16 | 2003.7 GB | ✗ No | — |
| Q8_0 | 1066.2 GB | ✗ No | — |
| Q6_K | 823.7 GB | ✗ No | — |
| Q5_K_M | 712.4 GB | ✗ No | — |
| Q4_K_M | 607.4 GB | ✗ No | — |
| Q3_K_M | 429.9 GB | ✓ Yes | 64K |
| Q2_K | 332.4 GB | ✓ Yes | 128K |
VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 512 GB of unified memory. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Every Inkling variant requires more VRAM than the Apple M3 Ultra provides (512 GB).
Inkling needs ~563 GB but this GPU has 512 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:
Affiliate links — we may earn a commission if you sign up, at no extra cost to you.
Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
No — Inkling doesn't fit the Apple M3 Ultra's 512 GB.
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| Inkling (BF16) | 2000.0 GB | Runs at Q3_K_M | — |
| Inkling (NVFP4) | 562.5 GB | Runs at Q3_K_M | — |
← Can I Run It? | Inkling Model Page | Apple M3 Ultra GPU Page | Check Your Hardware