01.AI on Apple M3
Can I run Yi-1.5 34B on an Mac Studio M3 Ultra 256GB?
Yes. Yi-1.5 34B at Q4_K_M uses 21.9 GB of the 192.0 GB available on a Mac Studio M3 Ultra 256GB, and runs at about 23.0 tokens per second. You can push the context to 32K.
Runs comfortably
21.9 GB of 192.0 GB · 11%0192 GB
Weights
19.5 GB
KV cache
1.9 GB
Runtime overhead
0.6 GB
Yi-1.5 34B at Q4_K_M leaves 170.1 GB spare on a Mac Studio M3 Ultra 256GB. There is room to raise the context length or move up a quantisation level.
Generation23.0tok/s
Prompt processing348tok/s
Max context32Ktokens
KV per 1K tokens0GB
Every quantisation of Yi-1.5 34B on a Mac Studio M3 Ultra 256GB
Highlighted row is the highest quality that still fits at 8K context.
| Quantisation | bpw | Weights | Total | Verdict | Max ctx | tok/s |
|---|---|---|---|---|---|---|
| FP16 / BF16 | 16.00 | 64.1 GB | 66.5 GB | Runs comfortably | 32K | 7.26 |
| INT8 / W8A8 | 8.50 | 33.8 GB | 36.3 GB | Runs comfortably | 32K | 13.5 |
| Q8_0 (GGUF) | 8.50 | 33.8 GB | 36.3 GB | Runs comfortably | 32K | 13.5 |
| FP8 (E4M3) | 8.00 | 32.0 GB | 34.5 GB | Runs comfortably | 32K | 14.3 |
| Q6_K | 6.56 | 26.3 GB | 28.7 GB | Runs comfortably | 32K | 17.3 |
| Q5_K_M | 5.67 | 22.7 GB | 25.2 GB | Runs comfortably | 32K | 19.9 |
| Q5_K_S | 5.52 | 22.1 GB | 24.6 GB | Runs comfortably | 32K | 20.4 |
| Q4_K_M | 4.85 | 19.5 GB | 21.9 GB | Runs comfortably | 32K | 23.0 |
| Q4_K_S | 4.58 | 18.4 GB | 20.9 GB | Runs comfortably | 32K | 24.2 |
| Q4_0 | 4.55 | 18.3 GB | 20.8 GB | Runs comfortably | 32K | 24.4 |
| AWQ 4-bit | 4.25 | 18.3 GB | 20.7 GB | Runs comfortably | 32K | 24.4 |
| GPTQ 4-bit | 4.25 | 18.3 GB | 20.7 GB | Runs comfortably | 32K | 24.4 |
| MXFP4 | 4.25 | 18.3 GB | 20.7 GB | Runs comfortably | 32K | 24.4 |
| IQ4_XS | 4.25 | 17.2 GB | 19.6 GB | Runs comfortably | 32K | 25.9 |
| Q3_K_M | 3.91 | 15.8 GB | 18.3 GB | Runs comfortably | 32K | 27.9 |
| IQ3_M | 3.70 | 15.0 GB | 17.5 GB | Runs comfortably | 32K | 29.4 |
| IQ3_XXS | 3.06 | 12.5 GB | 15.0 GB | Runs comfortably | 32K | 34.7 |
| Q2_K | 2.63 | 10.8 GB | 13.3 GB | Runs comfortably | 32K | 39.6 |
| IQ2_XXS | 2.06 | 8.6 GB | 11.1 GB | Runs comfortably | 32K | 48.7 |
| IQ1_M | 1.75 | 7.4 GB | 9.9 GB | Runs comfortably | 32K | 55.6 |