DeepSeek R1T Chimera — Hardware Requirements & GPU Compatibility
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DeepSeek R1T Chimera is a 684.5B-parameter open language model from tngtech in the DeepSeek R1 family. It supports a context window of up to 163,840 tokens. At Q4_K_M it needs about 414.60 GB of VRAM — see which GPUs and Macs can run it below.
72 downloads
272 likesSpecifications
- Publisher
- tngtech
- Family
- DeepSeek R1
- Parameters
- 684.5B
- Architecture
- DeepseekV3ForCausalLM
- Context Length
- 163,840 tokens
- Vocabulary Size
- 129,280
- Release Date
- 2025-04-26
- License
- MIT
Get Started
HuggingFace
How Much VRAM Does DeepSeek R1T Chimera Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| Q2_Kest. | 3.40 | 294.8 GB | 577.8 GB | 290.93 GB | 2-bit quantization with K-quant improvements |
| Q3_K_Mest. | 3.90 | 337.6 GB | 620.6 GB | 333.71 GB | 3-bit medium quantization |
| Q4_K_Mest. | 4.80 | 414.6 GB | 697.6 GB | 410.72 GB | 4-bit medium quantization — most popular sweet spot |
| Q5_K_Mest. | 5.70 | 491.6 GB | 774.6 GB | 487.73 GB | 5-bit medium quantization — good quality/size tradeoff |
| Q6_Kest. | 6.60 | 568.6 GB | 851.6 GB | 564.74 GB | 6-bit quantization, very good quality |
| Q8_0est. | 8.00 | 688.4 GB | 971.4 GB | 684.53 GB | 8-bit quantization, near-lossless |
| BF16est. | 16.00 | 1372.9 GB | 1655.9 GB | 1369.06 GB | Brain floating point 16 — preferred for training |
est.= calculated VRAM estimate; no published GGUF file found for that quantization yet. Other rows are verified against real community uploads.
Which GPUs Can Run DeepSeek R1T Chimera?
Q4_K_M · 414.6 GBDeepSeek R1T Chimera (Q4_K_M) requires 414.6 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 539+ GB is recommended. Using the full 164K context window can add up to 283.0 GB, bringing total usage to 697.6 GB. No single GPU has enough memory — multi-GPU or cluster setups are needed.
Which Devices Can Run DeepSeek R1T Chimera?
Q4_K_M · 414.6 GB2 devices with unified memory can run DeepSeek R1T Chimera, including NVIDIA DGX H100, NVIDIA DGX A100 640GB.
Runs great
— Plenty of headroomRelated Models
Frequently Asked Questions
- How much VRAM does DeepSeek R1T Chimera need?
DeepSeek R1T Chimera requires 414.6 GB of VRAM at Q4_K_M, or 1372.9 GB at BF16. Full 164K context adds up to 283.0 GB (697.6 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 684.5B × 4.8 bits ÷ 8 = 410.7 GB
KV Cache + Overhead ≈ 3.9 GB (at 2K context + ~0.3 GB framework)
KV Cache + Overhead ≈ 286.9 GB (at full 164K context)
VRAM usage by quantization
Q4_K_M414.6 GBQ4_K_M + full context697.6 GB- Can NVIDIA GeForce RTX 5090 run DeepSeek R1T Chimera?
No — DeepSeek R1T Chimera requires at least 294.8 GB at Q2_K, which exceeds the NVIDIA GeForce RTX 5090's 32 GB of VRAM.
- What's the best quantization for DeepSeek R1T Chimera?
For DeepSeek R1T Chimera, Q4_K_M (414.6 GB) offers the best balance of quality and VRAM usage. Q5_K_M (491.6 GB) provides better quality if you have the VRAM. The smallest option is Q2_K at 294.8 GB.
VRAM requirement by quantization
Q2_K294.8 GBQ4_K_M ★414.6 GBQ5_K_M491.6 GBQ6_K568.6 GBQ8_0688.4 GBBF161372.9 GB★ Recommended — best balance of quality and VRAM usage.
- Can I run DeepSeek R1T Chimera on a Mac?
DeepSeek R1T Chimera requires at least 294.8 GB at Q2_K, which exceeds the unified memory of most consumer Macs. You would need a Mac Studio or Mac Pro with a high-memory configuration.
- Can I run DeepSeek R1T Chimera locally?
Yes — DeepSeek R1T Chimera can run locally on consumer hardware. At Q4_K_M quantization it needs 414.6 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- What's the download size of DeepSeek R1T Chimera?
At Q4_K_M, the download is about 410.72 GB. The full-precision BF16 version is 1369.06 GB. The smallest option (Q2_K) is 290.93 GB.
- Which GPUs can run DeepSeek R1T Chimera?
No single consumer GPU has enough VRAM to run DeepSeek R1T Chimera at Q4_K_M (414.6 GB). Multi-GPU or professional hardware is required.
- Which devices can run DeepSeek R1T Chimera?
3 devices with unified memory can run DeepSeek R1T Chimera at Q4_K_M (414.6 GB), including Mac Studio (M3 Ultra, 512GB), NVIDIA DGX A100 640GB, NVIDIA DGX H100. Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.