Qwen1.5B params33k context
Qwen 2.5 1.5B locally
Qwen 2.5 1.5B is an open-weight LLM from the Qwen family with 1.5B parameters. Main use: chat, RAG and general assistance. Detected minimum hardware: GTX 1650 (4 GB).
Technical facts
Parameters1.5B
Max context33k
Q4_K_M0.9 GB
Q5_K_M1.2 GB
Q81.7 GB
FP163.4 GB
FamilyQwen
Last sync2026-05-12
Available quantizations
GGUF weightsQ4_K_M
0.9GB
Acceptable. Good compromise when VRAM is limited.
Q5_K_M
1.2GB
Good quality. Sweet spot for size and precision.
Q8
1.7GB
Near-FP16 quality. Comfortable for production.
FP16
3.4GB
Reference precision. Maximum quality, doubled VRAM.
Compatible GPUs
12 single-GPUGPUs that can run Qwen 2.5 1.5B on a single card, ranked by VRAM headroom.
GTX 1650
NVIDIA4 GB · GTX 16
3.4 / 4 GBcomfortable · FP16
GTX 1060 6GB
NVIDIA6 GB · GTX 10
3.4 / 6 GBcomfortable · FP16
GTX 1660
NVIDIA6 GB · GTX 16
3.4 / 6 GBcomfortable · FP16
GTX 1660 Super
NVIDIA6 GB · GTX 16
3.4 / 6 GBcomfortable · FP16
GTX 1660 Ti
NVIDIA6 GB · GTX 16
3.4 / 6 GBcomfortable · FP16
RTX 2060 6GB
NVIDIA6 GB · RTX 20
3.4 / 6 GBcomfortable · FP16
RTX 3050 6GB
NVIDIA6 GB · RTX 30
3.4 / 6 GBcomfortable · FP16
Arc A380
Intel6 GB · Arc Alchemist
3.4 / 6 GBcomfortable · FP16
GTX 1070
NVIDIA8 GB · GTX 10
3.4 / 8 GBcomfortable · FP16
GTX 1070 Ti
NVIDIA8 GB · GTX 10
3.4 / 8 GBcomfortable · FP16
GTX 1080
NVIDIA8 GB · GTX 10
3.4 / 8 GBcomfortable · FP16
RTX 2060 Super
NVIDIA8 GB · RTX 20
3.4 / 8 GBcomfortable · FP16
Recommended multi-GPU rigs
2x / 4x consumer GPUsFor Qwen 2.5 1.5B at higher quantization or with more context, a multi-GPU rig gives more headroom.
2× GTX 1650
NVIDIA8 GB · GTX 16
3.4 / 8 GBcomfortable · FP16
2× GTX 1060 6GB
NVIDIA12 GB · GTX 10
3.4 / 12 GBcomfortable · FP16
2× GTX 1660
NVIDIA12 GB · GTX 16
3.4 / 12 GBcomfortable · FP16
2× GTX 1660 Super
NVIDIA12 GB · GTX 16
3.4 / 12 GBcomfortable · FP16
2× GTX 1660 Ti
NVIDIA12 GB · GTX 16
3.4 / 12 GBcomfortable · FP16
2× RTX 2060 6GB
NVIDIA12 GB · RTX 20
3.4 / 12 GBcomfortable · FP16
2× RTX 3050 6GB
NVIDIA12 GB · RTX 30
3.4 / 12 GBcomfortable · FP16
2× Arc A380
Intel12 GB · Arc Alchemist
3.4 / 12 GBcomfortable · FP16
Recommended rig
2× GTX 1650
Qwen 2.5 1.5B with Ubuntu, vLLM, Open WebUI and the model already downloaded.
Similar models
VRAM estimates: parameters x bits/8 plus margin. Real performance varies by engine, context length and batch size.
sync: 2026-05-12