Can I Run DeepSeek-R1-Distill-Qwen-32B on 48 GB system RAM?

Superseded model. DeepSeek R1 has been superseded by DeepSeek V4. This page is kept for reference; the newer family is a better starting point. View DeepSeek V4 →

Written by Jakub Rusinowski · Last updated January 20, 2025

These figures are for DeepSeek-R1-Distill-Qwen-32B, a distill of Qwen2.5-32B — not the full DeepSeek R1. The full DeepSeek R1 (671B) needs about 405 GB of weights at Q4_K_M and is a different model.

Yes — comfortably

Yes, comfortably — DeepSeek R1 Distill Qwen 32B at Q2_K needs about 13.5 GB of the 38.4 GB usable on 48 GB system RAM, leaving ~24.9 GB spare and running at ~5.7 tok/s (estimated), with room for about 65,536 tokens of context.

Confidence: high · Recommended quantization: Q2_K · Estimated speed: ~5.7 tok/s

48 GB system RAM — what it gives a model

Usable memory for models	38.4 GB
Memory bandwidth	90 GB/s

DeepSeek R1 on 48 GB system RAM: memory by quantization

Quant	Memory needed	Fits 38.4 GB?	Max context	Est. speed	Download
F16	66.9 GB	✗ No	—	—	64 GB
Q8_0	36.9 GB	✓ Yes	8K	~1.9 tok/s	34 GB
Q6_K	29.2 GB	✓ Yes	32K	~2.4 tok/s	26.2 GB
Q5_K_M	25.6 GB	✓ Yes	32K	~2.8 tok/s	22.7 GB
Q4_K_M	22.3 GB	✓ Yes	64K	~3.3 tok/s	19.3 GB
Q3_K_M	16.6 GB	✓ Yes	64K	~4.5 tok/s	13.6 GB
Q2_K	13.5 GB	✓ Yes	64K	~5.7 tok/s	10.5 GB

Which DeepSeek R1 sizes fit

Variant	Needs at Q4_K_M	Fits?	Est. speed
DeepSeek R1 (671B)	406.5 GB	✗ Too large	—
DeepSeek R1 Distill Qwen 32B	22.3 GB	✓ Fits	~3.3 tok/s
DeepSeek R1 Distill Qwen 14B	10.6 GB	✓ Fits	~7.2 tok/s
DeepSeek R1 Distill Llama 8B	6.7 GB	✓ Fits	~12.2 tok/s

What to watch out for

Q2_K is the only quantization that fits, and it is a heavily degraded one — expect noticeably worse output than the same model at Q4_K_M. A smaller model at Q4 is usually the better trade.
1 larger variant of DeepSeek R1 does not fit and would need CPU offload or different hardware.
These figures assume CPU-only inference. Any discrete GPU, even an 8 GB one, will be several times faster for models that fit in its VRAM.

Recommended setup

llama.cpp (CPU build) or Ollama — both run without a GPU

How these numbers are calculated

Memory need = quantized weights + KV cache at 8,192 tokens (f16) + 0.8 GB runtime overhead.
38.4 GB of the 48 GB is treated as usable for model weights (80% — the rest is the OS and running applications).
DDR5-5600 dual channel at 89.6 GB/s peak. CPU decode is assumed to sustain 35% of that peak, because CPU inference is not purely bandwidth-bound — it also spends real time in compute and thread synchronisation. This figure is an assumption, not a fitted constant: no CPU measurement is in the calibration set.
CPU-only inference: no GPU is assumed. A GPU of any size will beat these figures substantially.
Throughput is a memory-bandwidth roofline estimate, not a measurement. It is labelled "estimated" everywhere it appears.
KV cache is computed from this model's published attention configuration.

FAQ

Can I run DeepSeek R1 on 48 GB system RAM?

Which quantization of DeepSeek R1 should I use on 48 GB system RAM?

Q2_K — it needs about 13.5 GB of the 38.4 GB available, downloads as roughly 10.5 GB, and runs at an estimated 5.7 tokens/sec with up to 64K of context.

What limits DeepSeek R1 on 48 GB system RAM?

Nothing binding — the model fits with headroom and generates at a usable speed on this hardware.

Can I Run DeepSeek-R1-Distill-Qwen-32B on 48 GB system RAM?

48 GB system RAM — what it gives a model

DeepSeek R1 on 48 GB system RAM: memory by quantization

Which DeepSeek R1 sizes fit

What to watch out for

Recommended setup

How these numbers are calculated

FAQ

Can I run DeepSeek R1 on 48 GB system RAM?

Which quantization of DeepSeek R1 should I use on 48 GB system RAM?

What limits DeepSeek R1 on 48 GB system RAM?

Which runtime should I use?

Other Models on 48 GB system RAM

DeepSeek R1 on GPUs

What This Model Is Good At

Model & Tools