DeepSeek R1 Distill 8B needs ~10.0 GB VRAM. RTX A4500 20GB has 20.0 GB. With Q4_K_M quantization, expect ~110 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
Runs well
Decode
110.0 tok/s
TTFT
1761 ms
Safe context
33K
Memory
10.0 GB / 20.0 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 | Runs well | 110.0 tok/s | 960 ms | 33K |
| Coding | B | Runs well | 110.0 tok/s | 1761 ms | 33K |
| Agentic Coding | A | Runs well | 110.0 tok/s | 2561 ms | 33K |
| Reasoning | B | Runs well | 110.0 tok/s | 2081 ms | 33K |
| RAG | A | Runs well | 110.0 tok/s | 3201 ms | 33K |
How DeepSeek R1 Distill 8B (8B params) fits at each quantization level on RTX A4500 20GB (20.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 3.1 GB | Low | B62 |
Q3_K_S | 3 | 3.9 GB | Low | B63 |
NVFP4 | 4 | 4.5 GB | Medium | B63 |
Q4_K_M | 4 | 4.9 GB | Medium | B63 |
Q5_K_M | 5 | 5.8 GB | High | B64 |
Q6_K | 6 | 6.6 GB | High | B65 |
Q8_0Best for your GPU | 8 | 8.6 GB | Very High | B66 |
F16 | 16 | 16.4 GB | Maximum | F0 |
Copy-paste commands to run DeepSeek R1 Distill 8B on your machine.
Run
ollama run deepseek-r1:8bYes, RTX A4500 20GB can run DeepSeek R1 Distill 8B with a B grade (Runs well). Expected decode speed: 110.0 tok/s.
DeepSeek R1 Distill 8B (8B parameters) requires approximately 10.0 GB of memory with Q4_K_M quantization.
The recommended quantization for DeepSeek R1 Distill 8B is Q4_K_M, which balances quality and memory efficiency.
On RTX A4500 20GB, DeepSeek R1 Distill 8B achieves approximately 110.0 tokens per second decode speed with a time-to-first-token of 1761ms using Q4_K_M quantization.
For coding workloads, DeepSeek R1 Distill 8B on RTX A4500 20GB receives a B grade with 110.0 tok/s and 33K context.
On RTX A4500 20GB, DeepSeek R1 Distill 8B can safely use up to 33K tokens of context. The model's official context limit is 33K, 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/deepseek-r1-distill-8b-on-rtx-a4500-20gb" 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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