HomeCan I run it?DeepSeek-R1DeepSeek-R1 on an RTX 5090
No. DeepSeek-R1 at Q4_K_M needs about 478.2 GB, and the GeForce RTX 5090 has 32.0 GB usable at a ~4k context.
Can I run DeepSeek-R1 on an RTX 5090?
DeepSeek-R1 at Q4_K_M needs about 478.2 GB, and the GeForce RTX 5090 has 32.0 GB usable. That figure is 32 GB of VRAM on the spec sheet, of which 32.0 GB is usable for weights and cache, at 1792 GB/s memory bandwidth. The full DeepSeek-R1 teacher model (hundreds of billions of parameters). No single device we track holds it at Q4. These are estimates from our formula, not measured benchmarks.
- Quant that fits
- None of Q4, Q8 or FP16 needs 478.2 GB
- Memory needed
- 478.2 GB at Q4_K_M, ~4k context
- Usable VRAM
- 32.0 GB of 32 GB VRAM
- Est. tokens/sec
- n/a does not fit
Memory at each quant
| Quant | Need vs 32.0 GB | Verdict |
|---|---|---|
| Q4_K_M | 478.2 GB | Q4Won’t fit |
| Q8_0 | 837.4 GB | Q8Won’t fit |
| FP16 | 1575.3 GB | FP16Won’t fit |
Estimated tokens per second
No speed estimate: DeepSeek-R1 does not fit in the 32.0 GB this machine can use, so we do not publish a tokens/sec figure for CPU offload.
Context headroom
We do not have a published KV config for this model, so the memory need is the ~4k-context estimate only. Use the VRAM calculator to explore longer chats.
What to do instead
- Run R1 Distill 32B instead (23.8 GB at Q4). It is a different model, not a drop-in, but it does fit this machine.
- No single device we track has enough usable memory for DeepSeek-R1 at Q4 (478.2 GB needed). A smaller distill or a hosted API is the practical path.
- CPU offload can load the weights anyway, but it is slow. We do not publish an offload tokens/sec figure.
- See the best GPU for this model family and the DeepSeek-R1 model page.
Other hardware for DeepSeek-R1
- DeepSeek-R1 on a Mac Studio 512GBWon’t fit
- DeepSeek-R1 on a Mac Studio 256GBWon’t fit
- DeepSeek-R1 on dual RTX 3090sWon’t fit
- DeepSeek-R1 on an RTX 4090Won’t fit
Other models on an RTX 5090
- Qwen3-32B on an RTX 5090Fits
- Qwen3-30B-A3B on an RTX 5090Fits
- Qwen3.8-27B on an RTX 5090Fits
- Gemma 3 27B on an RTX 5090Fits
- Gemma 4 31B on an RTX 5090Fits
- gpt-oss-20b on an RTX 5090Fits
Quick answers
- Can I run DeepSeek-R1 on an RTX 5090?
- No. DeepSeek-R1 at Q4_K_M needs about 478.2 GB, and the GeForce RTX 5090 has 32.0 GB usable.
- How much VRAM does DeepSeek-R1 need?
- About 478.2 GB at Q4_K_M, 837.4 GB at Q8_0 and 1575.3 GB at FP16, estimated for a ~4k context.
- How fast is DeepSeek-R1 on an RTX 5090?
- We do not estimate tokens/sec when the model does not fit. CPU offload is possible but slow.