DeepSeek671B params37B active (MoE)128k contextpopular

DeepSeek V3 locally

DeepSeek V3 is an open-weight LLM from the DeepSeek family with 671B parameters. Main use: chat, RAG and general assistance. Detected minimum hardware: Mac Studio M3 Ultra (512GB) (512 GB).

Technical facts
Parameters671B
Max context128k
Q4_K_M421.8 GB
Q5_K_M515.6 GB
Q8749.9 GB
FP161499.8 GB
FamilyDeepSeek
Last sync2026-05-12

Available quantizations

Q4_K_M
421.8GB

Acceptable. Good compromise when VRAM is limited.

Q5_K_M
515.6GB

Good quality. Sweet spot for size and precision.

Q8
749.9GB

Near-FP16 quality. Comfortable for production.

FP16
1499.8GB

Reference precision. Maximum quality, doubled VRAM.

Compatible GPUs

GPUs that can run DeepSeek V3 on a single card, ranked by VRAM headroom.

Similar models

VRAM estimates: parameters x bits/8 plus margin. Real performance varies by engine, context length and batch size.
sync: 2026-05-12