UPDATED FOR DEEPSEEK-R1, QWEN3, LLAMA 4 & RTX 5090

LLM VRAM, KV-Cache & Token Speed Calculator

Calculate exact GPU memory requirements (Weights + GQA/MLA KV Cache + Activation Buffer) and generation speed (tokens/sec) across 36 open-source LLMs and 23 GPUs / Mac Unified Memory configs.

⚡ Quick Model × Hardware Matchmaker

🔥 Most Searched LLM × GPU Compatibility Benchmarks

FITS (Q4_K_M) ~31.4 tok/s

DeepSeek-R1-Distill-Qwen-32B

on NVIDIA RTX 4090 (24GB)
Requires 23.14 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~31.4 tok/s

Qwen3-32B

on NVIDIA RTX 4090 (24GB)
Requires 23.14 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~92.6 tok/s

DeepSeek-R1 671B (MoE)

on 8x NVIDIA H100 80GB (640GB) (640GB)
Requires 420.2 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~24.8 tok/s

DeepSeek-R1 671B (MoE)

on Apple M3 Ultra Mac Studio (512GB) (512GB)
Requires 420.2 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~13.6 tok/s

Llama-3.3-70B-Instruct

on 2x NVIDIA RTX 3090 (48GB) (48GB)
Requires 47.25 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~29.5 tok/s

Llama-3.3-70B-Instruct

on NVIDIA A100 80GB SXM (80GB)
Requires 47.25 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~280 tok/s

Qwen3-30B-A3B (MoE)

on NVIDIA RTX 4090 (24GB)
Requires 20.45 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~55.9 tok/s

Qwen2.5-Coder-32B-Instruct

on NVIDIA RTX 5090 (32GB)
Requires 23.14 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~37.6 tok/s

Google Gemma-3-27B-IT

on NVIDIA RTX 4090 (24GB)
Requires 21.64 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~122.7 tok/s

Llama-4-Scout-17B-16E (109B MoE)

on NVIDIA A100 80GB SXM (80GB)
Requires 70.22 GB VRAM at 8K ctx →
OVERFLOW ~4 tok/s

Mistral-Small-3.1-24B-Instruct

on NVIDIA RTX 4080 Super (16GB)
Requires 16.9 GB VRAM at 8K ctx →
FITS (Q4_K_M) ~24.9 tok/s

Qwen3-14B

on NVIDIA RTX 3060 12GB (12GB)
Requires 11.15 GB VRAM at 8K ctx →

📊 Complete LLM VRAM Reference Table (8K Context, Batch=1)

Model Name Params (Active) Architecture FP16 VRAM FP8 / Q8_0 Q4_K_M (4-bit) Min GPU (4-bit)
DeepSeek-R1 671B (MoE) 671B (37B) MLA-MoE 1383.46 GB 735.52 GB 420.2 GB Apple M3 Ultra Mac Studio (512GB) (512GB)
DeepSeek-V3 671B (MoE) 671B (37B) MLA-MoE 1383.46 GB 735.52 GB 420.2 GB Apple M3 Ultra Mac Studio (512GB) (512GB)
DeepSeek-R1-Distill-Llama-70B 70.6B (70.6B) Dense-GQA 148.6 GB 80.43 GB 47.25 GB NVIDIA RTX 6000 Ada (48GB)
DeepSeek-R1-Distill-Qwen-32B 32.8B (32.8B) Dense-GQA 70.23 GB 38.55 GB 23.14 GB NVIDIA RTX 4090 (24GB)
DeepSeek-R1-Distill-Qwen-14B 14.8B (14.8B) Dense-GQA 32.65 GB 18.36 GB 11.4 GB NVIDIA RTX 3060 12GB (12GB)
DeepSeek-R1-Distill-Llama-8B 8.03B (8.03B) Dense-GQA 18.2 GB 10.45 GB 6.67 GB NVIDIA RTX 3060 12GB (12GB)
DeepSeek-R1-Distill-Qwen-7B 7.62B (7.62B) Dense-GQA 16.79 GB 9.43 GB 5.85 GB NVIDIA RTX 3060 12GB (12GB)
Qwen3-235B-A22B (MoE) 235B (22B) MoE-GQA 486.23 GB 259.3 GB 148.87 GB NVIDIA Blackwell B200 192GB (192GB)
Qwen3-30B-A3B (MoE) 30.5B (3.3B) MoE-GQA 64.23 GB 34.78 GB 20.45 GB NVIDIA RTX 4090 (24GB)
Qwen3-32B 32.8B (32.8B) Dense-GQA 70.23 GB 38.55 GB 23.14 GB NVIDIA RTX 4090 (24GB)
Qwen3-14B 14.8B (14.8B) Dense-GQA 32.4 GB 18.11 GB 11.15 GB NVIDIA RTX 3060 12GB (12GB)
Qwen3-8B 8.2B (8.2B) Dense-GQA 18.67 GB 10.76 GB 6.9 GB NVIDIA RTX 3060 12GB (12GB)
Qwen2.5-72B-Instruct 72.7B (72.7B) Dense-GQA 152.93 GB 82.73 GB 48.56 GB Apple M4 Pro Mac Mini (64GB) (64GB)
Qwen2.5-Coder-32B-Instruct 32.8B (32.8B) Dense-GQA 70.23 GB 38.55 GB 23.14 GB NVIDIA RTX 4090 (24GB)
Qwen2.5-14B-Instruct 14.8B (14.8B) Dense-GQA 32.65 GB 18.36 GB 11.4 GB NVIDIA RTX 3060 12GB (12GB)
Qwen2.5-7B-Instruct 7.62B (7.62B) Dense-GQA 16.79 GB 9.43 GB 5.85 GB NVIDIA RTX 3060 12GB (12GB)
QwQ-32B Reasoning 32.8B (32.8B) Dense-GQA 70.23 GB 38.55 GB 23.14 GB NVIDIA RTX 4090 (24GB)
Llama-4-Maverick-17B-128E (400B MoE) 400B (17B) MoE-GQA 826.16 GB 439.91 GB 251.93 GB 4x NVIDIA A100 80GB (320GB) (320GB)
Llama-4-Scout-17B-16E (109B MoE) 109B (17B) MoE-GQA 226.7 GB 121.45 GB 70.22 GB NVIDIA A100 80GB SXM (80GB)
Llama-3.3-70B-Instruct 70.6B (70.6B) Dense-GQA 148.6 GB 80.43 GB 47.25 GB NVIDIA RTX 6000 Ada (48GB)
Llama-3.1-405B-Instruct 405B (405B) Dense-GQA 838.92 GB 447.84 GB 257.51 GB 4x NVIDIA A100 80GB (320GB) (320GB)
Llama-3.1-70B-Instruct 70.6B (70.6B) Dense-GQA 148.6 GB 80.43 GB 47.25 GB NVIDIA RTX 6000 Ada (48GB)
Llama-3.1-8B-Instruct 8.03B (8.03B) Dense-GQA 18.2 GB 10.45 GB 6.67 GB NVIDIA RTX 3060 12GB (12GB)
Llama-3.2-3B-Instruct 3.21B (3.21B) Dense-GQA 8.14 GB 5.04 GB 3.54 GB NVIDIA RTX 3060 12GB (12GB)
Mistral-Large-2-123B 123B (123B) Dense-GQA 256.8 GB 138.03 GB 80.23 GB Apple M4 Max (128GB Unified) (128GB)
Mistral-Small-3.1-24B-Instruct 24B (24B) Dense-GQA 51.35 GB 28.17 GB 16.9 GB NVIDIA RTX 4090 (24GB)
Mixtral-8x22B-Instruct (MoE) 141B (39B) MoE-GQA 292.87 GB 156.72 GB 90.46 GB Apple M4 Max (128GB Unified) (128GB)
Mixtral-8x7B-Instruct (MoE) 46.7B (12.9B) MoE-GQA 97.86 GB 52.76 GB 30.82 GB NVIDIA RTX 5090 (32GB)
Codestral-22B 22.2B (22.2B) Dense-GQA 48.14 GB 26.71 GB 16.27 GB NVIDIA RTX 4090 (24GB)
Google Gemma-3-27B-IT 27.4B (27.4B) Dense-GQA 60.98 GB 34.52 GB 21.64 GB NVIDIA RTX 4090 (24GB)
Google Gemma-3-12B-IT 12.2B (12.2B) Dense-GQA 28.79 GB 17.01 GB 11.28 GB NVIDIA RTX 3060 12GB (12GB)
Google Gemma-3-4B-IT 4.3B (4.3B) Dense-GQA 10.58 GB 6.42 GB 4.4 GB NVIDIA RTX 3060 12GB (12GB)
Microsoft Phi-4 14B 14.7B (14.7B) Dense-GQA 32.5 GB 18.31 GB 11.4 GB NVIDIA RTX 3060 12GB (12GB)
Cohere Command-A 111B 111B (111B) Dense-GQA 231.33 GB 124.15 GB 71.99 GB NVIDIA A100 80GB SXM (80GB)
Yi-1.5-34B-Chat 34.4B (34.4B) Dense-GQA 73.4 GB 40.18 GB 24.02 GB NVIDIA RTX 5090 (32GB)
GLM-4-32B-0414 32B (32B) Dense-GQA 68.49 GB 37.59 GB 22.55 GB NVIDIA RTX 4090 (24GB)