Yi 1.5 34B needs ~28.8 GB VRAM. RTX 5000 Ada 32GB has 32.0 GB. With Q4_K_M quantization, expect ~24 tok/s.
Operating mode
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
Fit status
Tight fit
Decode
24.1 tok/s
TTFT
8026 ms
Safe context
4K
Memory
28.8 GB / 32.0 GB
This setup is broadly balanced for this model.
No major red flags
This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | B | Tight fit | 24.1 tok/s | 4378 ms | 4K |
| Coding | B | Tight fit | 24.1 tok/s | 8026 ms | 4K |
| Agentic Coding | B | Runs with offload (needs ~0.3 GB host RAM) | 17.6 tok/s | 16044 ms | 4K |
| Reasoning | B | Tight fit | 24.1 tok/s | 9485 ms | 4K |
| RAG | B | Runs with offload (needs ~0.3 GB host RAM) | 17.6 tok/s | 20055 ms | 4K |
Inference speed
Estimated decode speed (tokens/sec) for Yi 1.5 34B at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~63 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.
| GPU / Mac | Memory | Quant | Speed (tok/s) | Fits? |
|---|---|---|---|---|
 RTX 5090 32GB | 32 GB | Q4_K_M | 62.9 | Tight |
MacBook Pro M4 Max 128GB | 128 GB | Q4_K_M | 31.4 | Fits |
MacBook Pro M4 Max 64GB | 64 GB | Q4_K_M | 31.4 | Fits |
Mac Studio M3 Ultra 256GB | 256 GB | Q4_K_M | 29.2 | Fits |
Mac Studio M2 Ultra 128GB | 128 GB | Q4_K_M | 24.3 | Fits |
Mac Studio M1 Ultra 128GB | 128 GB | Q4_K_M | 23.0 | Fits |
| RTX 4090 24GB | 24 GB | Q4_K_M | 21.7 | Heavy offload |
RX 7900 XTX 24GB | 24 GB | Q4_K_M | 20.1 | Heavy offload |
MacBook Pro M4 Pro 48GB | 48 GB | Q4_K_M | 19.8 | Tight |
| RTX 3090 24GB | 24 GB | Q4_K_M | 18.6 | Heavy offload |
MacBook Pro M3 Max 64GB | 64 GB | Q4_K_M | 12.6 | Fits |
MacBook Pro M1 Max 64GB | 64 GB | Q4_K_M | 11.5 | Fits |
| RTX 4080 Super 16GB | 16 GB | Q4_K_M | 7.8 | Too big |
| RTX 4070 12GB | 12 GB | Q4_K_M | 3.0 | Too big |
| RTX 3060 12GB | 12 GB | Q4_K_M | 2.0 | Too big |
| RTX 4060 8GB | 8 GB | Q4_K_M | 2.0 | Too big |
Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.
How Yi 1.5 34B (34B params) fits at each quantization level on RTX 5000 Ada 32GB (32.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 13.3 GB | Low | B61 |
Q3_K_S | 3 | 16.7 GB | Low | B62 |
NVFP4 | 4 | 19.0 GB | Medium | B62 |
Q4_K_M | 4 | 20.7 GB | Medium | B62 |
Q5_K_MBest for your GPU | 5 | 24.5 GB | High | B61 |
Q6_K | 6 | 27.9 GB | High | F0 |
Q8_0 | 8 | 36.4 GB | Very High | F0 |
F16 | 16 | 69.7 GB | Maximum | F0 |
Copy-paste commands to run Yi 1.5 34B on your machine.
Run
lms load Yi-1.5-34B-Chat && lms server startUpgrade options
RTX A6000 48GBBudget pickRaises estimated decode speed by about 27%.
Adds memory headroom for longer context windows and future model growth.
~$4,650 MSRP
RTX PRO 5000 Blackwell 48GBBest valueRaises estimated decode speed by about 145%.
Adds memory headroom for longer context windows and future model growth.
~$4,999 MSRP
NVIDIA L40 48GBNVIDIA upgradeRaises estimated decode speed by about 46%.
Adds memory headroom for longer context windows and future model growth.
~$5,500 MSRP
Yes, RTX 5000 Ada 32GB can run Yi 1.5 34B with a B grade (Tight fit). Expected decode speed: 24.1 tok/s.
Yi 1.5 34B (34B parameters) requires approximately 28.8 GB of memory with Q4_K_M quantization.
The recommended quantization for Yi 1.5 34B is Q4_K_M, which balances quality and memory efficiency.
On RTX 5000 Ada 32GB, Yi 1.5 34B achieves approximately 24.1 tokens per second decode speed with a time-to-first-token of 8026ms using Q4_K_M quantization.
For coding workloads, Yi 1.5 34B on RTX 5000 Ada 32GB receives a B grade with 24.1 tok/s and 4K context.
On RTX 5000 Ada 32GB, Yi 1.5 34B can safely use up to 4K tokens of context. The model's official context limit is 4K, but available memory constrains the safe maximum.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/yi-1.5-34b-on-rtx-5000-ada-32gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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