Mac Studio M3 Ultra 512GB Price & Used Prices: Which Local LLMs Can It Run?
The Mac Studio M3 Ultra 512GB has 512GB of LPDDR5X memory with 819 GB/s of bandwidth. The median asking price is about $22,000 on eBay. At Q4 quantization it runs models up to 70B parameters at roughly 11 tokens/s.
Mac Studio M3 Ultra 512GB price history
eBay
Full Mac Studio M3 Ultra 512GB specifications
What LLMs can the Mac Studio M3 Ultra 512GB run?
Versions released since 2026 with up to 500B parameters| Model | 2-bit | 4-bit | 8-bit | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Fits | Speed t/s | Context | Fits | Speed t/s | Context | Fits | Speed t/s | Context | |
| GemmaGemma 4 E4B | ✓ | 120.8 | 128K | ✓ | 85.8 | 128K | ✓ | 49.1 | 128K |
| QwenQwen3.5 9B | ✓ | 99.5 | 128K | ✓ | 70.8 | 128K | ✓ | 40.6 | 128K |
| GemmaGemma 4 12B | ✓ | 70.3 | 128K | ✓ | 51.9 | 128K | ✓ | 31 | 128K |
| GemmaGemma 4 26B A4B | ✓ | 105.8 | 128K | ✓ | 89.7 | 128K | ✓ | 64.5 | 128K |
| QwenQwen3.6 27B | ✓ | 37.8 | 128K | ✓ | 26.2 | 128K | ✓ | 14.6 | 128K |
| QwenQwen3.8 27B | ✓ | 37.8 | 128K | ✓ | 26.2 | 128K | ✓ | 14.6 | 128K |
| GLMGLM 4.7 Flash | ✓ | 143.1 | 128K | ✓ | 121.1 | 128K | ✓ | 86.8 | 128K |
| GemmaGemma 4 31B | ✓ | 28.2 | 128K | ✓ | 20.5 | 128K | ✓ | 12.1 | 128K |
| QwenQwen3.6 35B A3B | ✓ | 138.4 | 128K | ✓ | 117.8 | 128K | ✓ | 85.1 | 128K |
| QwenQwen3.8 Flash Next | ✓ | 107.9 | 128K | ✓ | 84.7 | 128K | ✓ | 54.6 | 128K |
| DeepSeekDeepSeek V4 Flash | ✓ | 63.6 | 128K | ✓ | 47.2 | 128K | ✓ | 28.3 | 128K |
| HunyuanHy3 | ✓ | 40.8 | 128K | ✓ | 30 | 128K | ✓ | 17.8 | 128K |
| GLMGLM 5.3 Flash | ✓ | 22.6 | 128K | ✓ | 19.3 | 32K | ✓ | 14 | 32K |
Fits when weights + KV cache + runtime overhead is at or below usable memory, single card. "Offload" on MoE models means it runs with expert weights in system RAM (only attention layers and KV cache stay in VRAM); that speed assumes 70 GB/s RAM bandwidth. The context column is the largest tier that fits.
Prices by platform
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FAQ
How much VRAM does the Mac Studio M3 Ultra 512GB have?
The Mac Studio M3 Ultra 512GB has 512GB of LPDDR5X memory with 819 GB/s of bandwidth.
Can the Mac Studio M3 Ultra 512GB run a 70B model?
Yes. At Q4_K_M with an 8K context a 70B dense model needs about 43GB, which fits in the Mac Studio M3 Ultra 512GB's 512GB.
How much does a Mac Studio M3 Ultra 512GB cost?
The median asking price is about $22,000 on eBay. Figures are medians of live listings, refreshed every 6 hours.