DeepSeek R1 Distill Qwen 1.5B vs Qwen1.5 0.5B Chat
Side-by-side comparison of VRAM requirements, quantization, context length, and hardware compatibility.
Specifications
| DeepSeek R1 Distill Qwen 1.5B | Qwen1.5 0.5B Chat | |
|---|---|---|
| Parameters | 1.5B | 620M |
| Context | — | 33K |
| Architecture | — | Qwen2ForCausalLM |
| License | MIT | Other |
| Downloads | 32.8K | 85.9K |
| Released | Sep 2025 | Apr 2024 |
VRAM by Quantization: DeepSeek R1 Distill Qwen 1.5B vs Qwen1.5 0.5B Chat
| Quantization | Bits | DeepSeek R1 Distill Qwen 1.5B VRAM | Qwen1.5 0.5B Chat VRAM |
|---|---|---|---|
| Q2_K | 3.40 | 0.7 GB | 0.8 GB |
| Q3_K_M | 3.90 | 0.8 GB | 0.8 GB |
| Q3_K_S | 3.50 | — | 0.8 GB |
| Q4_0 | 4.00 | — | 0.8 GB |
| Q4_K_M | 4.80 | 1.0 GB | 0.9 GB |
| Q5_K_M | 5.70 | 1.2 GB | 0.9 GB |
| Q6_K | 6.60 | 1.4 GB | 1.0 GB |
| Q8_0 | 8.00 | 1.6 GB | 1.1 GB |
Verdict
Qwen1.5 0.5B Chat needs less VRAM at Q4_K_M (0.9 GB vs 1.0 GB), so it fits on smaller GPUs. Qwen1.5 0.5B Chat is the more widely downloaded of the two.
Frequently Asked Questions
- Which needs less VRAM, DeepSeek R1 Distill Qwen 1.5B or Qwen1.5 0.5B Chat?
At Q4_K_M, DeepSeek R1 Distill Qwen 1.5B needs 1.0 GB and Qwen1.5 0.5B Chat needs 0.9 GB, so Qwen1.5 0.5B Chat is the lighter option to run locally.
- What is the difference between DeepSeek R1 Distill Qwen 1.5B and Qwen1.5 0.5B Chat?
DeepSeek R1 Distill Qwen 1.5B is a 1.5B model from litert-community (Qwen family), while Qwen1.5 0.5B Chat is a 620M model from Alibaba (Qwen family). Compare their VRAM requirements above to see which fits your GPU or Mac.