作者： Jakub Rusinowski · 最后更新： 2026年8月15日
No. Yi 1.5 34B Chat needs 20.8 GB at Q4_K_M and the NVIDIA GeForce RTX 4070 has only 12 GB. No quantization we publish closes a gap that size.
| Model | Yi 1.5 34B Chat |
| Parameters | 34B |
| Quantization | Q4_K_M |
| VRAM needed | 20.8 GB |
| NVIDIA GeForce RTX 4070 VRAM | 12 GB |
| Verdict | Does not fit |
Either step down to a smaller size in this family, or move to a NVIDIA GeForce RTX 4090 (24 GB), the cheapest card we track with enough VRAM.
Cheapest card we track with enough VRAM for Yi 1.5 34B Chat:
Yi 1.5 34B Chat needs ~21 GB but this GPU has 12 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
All Yi 1.5 Family sizes on the NVIDIA GeForce RTX 4070 | VRAM calculator for Yi 1.5 34B Chat | NVIDIA GeForce RTX 4070 GPU page | Check your hardware