Can I Run GLM-5.2 on Apple M2 Ultra?
作者： Jakub Rusinowski · 最后更新： 2026年8月15日
No — GLM-5.2 doesn't fit the Apple M2 Ultra's 192 GB; you're short by ~56 GB even at Q2_K. The cheapest card that runs it is the Apple M5 Ultra (512 GB).
Get a personalized upgrade path →
作为亚马逊联盟成员，我们从符合条件的购买中获得收入。云 GPU 链接为推荐链接——我们可能获得佣金，您无需额外付费。
Apple M2 Ultra Specs
| VRAM | 192 GB unified memory |
| Memory Bandwidth | 800 GB/s |
GLM-5.2 744B on the Apple M2 Ultra: VRAM by quantization
| Quant | VRAM needed | Fits 192 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 1491.4 GB | ✗ No | — | — |
| Q8_0 | 793.9 GB | ✗ No | — | — |
| Q6_K | 613.5 GB | ✗ No | — | — |
| Q5_K_M | 530.7 GB | ✗ No | — | — |
| Q4_K_M | 452.6 GB | ✗ No | — | — |
| Q3_K_M | 320.5 GB | ✗ No | — | — |
| Q2_K | 248 GB | ✗ No | — | — |
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 192 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 M2 Ultra: 8K 455.2 GB ✗ · 32K 470.9 GB ✗ · 128K 533.7 GB ✗. Past 8K it no longer fits 192 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
Why It Does Not Fit
Every GLM-5.2 variant requires more VRAM than the Apple M2 Ultra provides (192 GB).
Nearest GPU That Fits
Apple M5 Ultra (512 GB VRAM).
GLM-5.2 needs ~449 GB but this GPU has 192 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.
FAQ
Is the Apple M2 Ultra enough to run GLM-5.2 locally?
No — GLM-5.2 doesn't fit the Apple M2 Ultra's 192 GB; you're short by ~56 GB even at Q2_K. The cheapest card that runs it is the Apple M5 Ultra (512 GB).
What's the cheapest GPU that runs GLM-5.2?
The Apple M5 Ultra (512 GB VRAM) is the cheapest upgrade that fits it.
Popular Models on the Apple M2 Ultra
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? | GLM-5.2 Model Page | Apple M2 Ultra GPU Page | Check Your Hardware