AI VRAM Calculator & Hardware Guide
Calculate exact VRAM requirements for LLMs, Flux, and Wan 2.1. Avoid CUDA OOM.
LLMDeepSeek
DeepSeek-R1-Distill-Qwen-1.5B
Min VRAM≥ 2.5 GB
Target GPUGTX 1650 4GB / RTX 3050
LLMDeepSeek
DeepSeek-R1-Distill-Qwen-7B
Min VRAM≥ 5.5 GB
Target GPURTX 3060 12GB / RTX 4060 8GB
LLMDeepSeek
DeepSeek-R1-Distill-Qwen-14B
Min VRAM≥ 9.8 GB
Target GPURTX 3060 12GB / RTX 4070 12GB
LLMDeepSeek
DeepSeek-R1-Distill-Qwen-32B
Min VRAM≥ 19.5 GB
Target GPURTX 3090 24GB / RTX 4090 24GB
LLMDeepSeek
DeepSeek-R1-Distill-Llama-8B
Min VRAM≥ 6 GB
Target GPURTX 4060 8GB / RTX 3060 12GB
LLMDeepSeek
DeepSeek-R1-Distill-Llama-70B
Min VRAM≥ 42 GB
Target GPU2x RTX 3090 24GB / Mac Studio 64GB+
LLMDeepSeek
DeepSeek-R1 (671B MoE)
Min VRAM≥ 380 GB
Target GPU8x H100 / Mac Studio M2 Ultra 192GB (CPU Offload)
LLMAlibaba
Qwen 2.5 7B Instruct
Min VRAM≥ 5.4 GB
Target GPURTX 3060 12GB / RTX 4060 8GB
LLMAlibaba
Qwen 2.5 14B Instruct
Min VRAM≥ 9.8 GB
Target GPURTX 3060 12GB / RTX 4070 12GB
LLMAlibaba
Qwen 2.5 32B Instruct
Min VRAM≥ 19.5 GB
Target GPURTX 3090 24GB / RTX 4090 24GB
LLMAlibaba
Qwen 2.5 Coder 32B Instruct
Min VRAM≥ 20 GB
Target GPURTX 3090 24GB / RTX 4090 24GB
LLMMeta
Llama 3.1 8B Instruct
Min VRAM≥ 5.8 GB
Target GPURTX 3060 12GB / RTX 4060 8GB
LLMMeta
Llama 3.3 70B Instruct
Min VRAM≥ 42 GB
Target GPU2x RTX 3090 / Mac Studio 64GB+
LLMGoogle
Gemma 2 9B Instruct
Min VRAM≥ 6.8 GB
Target GPURTX 3060 12GB / RTX 4060 Ti 16GB
LLMMicrosoft
Phi-4 14B
Min VRAM≥ 9.8 GB
Target GPURTX 3060 12GB / RTX 4070 12GB
DiT / VideoBlack Forest Labs
FLUX.1 [schnell]
Min VRAM≥ 8 GB
Target GPURTX 3060 12GB / RTX 4070 12GB
DiT / VideoBlack Forest Labs
FLUX.1 [dev]
Min VRAM≥ 10 GB
Target GPURTX 3090 24GB / RTX 4080 16GB
DiT / VideoStability AI
Stable Diffusion XL 1.0
Min VRAM≥ 6 GB
Target GPURTX 3060 8GB / RTX 4060 8GB
DiT / VideoAlibaba
Wan 2.1 T2V (1.3B)
Min VRAM≥ 8.2 GB
Target GPURTX 3060 12GB / RTX 4060 8GB (480P)
DiT / VideoAlibaba
Wan 2.1 T2V (14B)
Min VRAM≥ 16 GB
Target GPURTX 3090 24GB / RTX 4090 24GB