Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$30,000 MSRP
Leanstral 119B A6B needs ~87.0 GB but RTX 5000 Ada 32GB only has 32.0 GB. Try a smaller quantization or lighter model.
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
55.0 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
2.1 tok/s
TTFT
91948 ms
Safe context
4K
Memory
87.0 GB / 32.0 GB
Offload
60%
Usable VRAM is the main blocker for this model.
Not enough usable memory
The model needs 87.0 GB, but this setup only exposes 32.0 GB of usable VRAM.
Add more VRAM headroom
The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | F | Too heavy | 2.1 tok/s | 50153 ms | 4K |
| Coding | F | Too heavy | 2.1 tok/s | 91948 ms | 4K |
| Agentic Coding | F | Too heavy | 2.1 tok/s | 133742 ms | 4K |
| Reasoning | F | Too heavy | 2.1 tok/s | 108666 ms | 4K |
| RAG | F | Too heavy | 2.1 tok/s | 167178 ms | 4K |
Inference speed
Estimated decode speed (tokens/sec) for Leanstral 119B A6B at Q4_K_M across popular GPUs and Apple Silicon, including multi-GPU rigs, using the fastest local runtime per device. Fastest is Mac Studio M3 Ultra 256GB at ~17 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? |
|---|---|---|---|---|
Mac Studio M3 Ultra 256GB | 256 GB | Q4_K_M | 17.0 | Fits |
Mac Studio M2 Ultra 128GB | 128 GB | Q4_K_M | 11.9 | Too big |
Mac Studio M1 Ultra 128GB | 128 GB | Q4_K_M | 11.3 | Too big |
MacBook Pro M4 Max 128GB | 128 GB | Q4_K_M | 8.8 | Too big |
2× RX 7900 XTX 24GB | 48 GB | Q4_K_M | 7.4 | Too big |
| 48 GB | Q4_K_M | 6.7 | Too big | |
| 48 GB | Q4_K_M | 5.8 | Too big | |
| 32 GB | Q4_K_M | 5.5 | Too big | |
| 48 GB | Q4_K_M | 5.1 | Too big | |
MacBook Pro M4 Max 64GB | 64 GB | Q4_K_M | 3.7 | Too big |
| 24 GB | Q4_K_M | 3.5 | Too big | |
RX 7900 XTX 24GB | 24 GB | Q4_K_M | 3.2 | Too big |
| 24 GB | Q4_K_M | 3.0 | Too big | |
| 16 GB | Q4_K_M | 2.8 | Too big | |
MacBook Pro M3 Max 64GB | 64 GB | Q4_K_M | 2.6 | Too big |
MacBook Pro M1 Max 64GB | 64 GB | Q4_K_M | 2.4 | Too big |
| 12 GB | Q4_K_M | 2.0 | Too big | |
| 12 GB | Q4_K_M | 2.0 | Too big | |
| 8 GB | Q4_K_M | 2.0 | Too big | |
MacBook Pro M4 Pro 48GB | 48 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 Leanstral 119B A6B (119B params) fits at each quantization level on RTX 5000 Ada 32GB (32.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 46.4 GB | Low | F0 |
Q3_K_S | 3 | 58.3 GB | Low | F0 |
NVFP4 | 4 | 66.6 GB | Medium | F0 |
Q4_K_M | 4 | 72.6 GB | Medium | F0 |
Q5_K_M | 5 | 85.7 GB | High | F0 |
Q6_K | 6 | 97.6 GB | High | F0 |
Q8_0 | 8 | 127.3 GB | Very High | F0 |
F16 | 16 | 244.0 GB | Maximum | F0 |
Opções de upgrade
Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$30,000 MSRP
Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$30,000 MSRP
Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$30,000 MSRP
No, Leanstral 119B A6B requires more memory than RTX 5000 Ada 32GB provides.
Leanstral 119B A6B (119B parameters) requires approximately 87.0 GB of memory with Q4_K_M quantization.
The recommended quantization for Leanstral 119B A6B is Q4_K_M, which balances quality and memory efficiency.
On RTX 5000 Ada 32GB, Leanstral 119B A6B achieves approximately 2.1 tokens per second decode speed with a time-to-first-token of 91948ms using Q4_K_M quantization.
For coding workloads, Leanstral 119B A6B on RTX 5000 Ada 32GB receives a F grade with 2.1 tok/s and 4K context.
On RTX 5000 Ada 32GB, Leanstral 119B A6B can safely use up to 4K tokens of context. The model's official context limit is 256K, but available memory constrains the safe maximum.
Add more VRAM headroom. The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/leanstral-119b-a6b-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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