Configure a rig →
AppleAppleMac Studiounified memory

Mac Studio M3 Ultra (256GB) for local AI

Mac Studio M3 Ultra (256GB) provides 256 GB of VRAM for local AI. In the LocalIA catalog, 234 out of 242 models run comfortably on a single card.

View all compatible models →Rig around the (256GB) ↗
VRAM
256GB
Category
Apple
Series
Mac Studio
Vendor
Apple

Models that run comfortably

These models fit in 256 GB with room for context and stable inference.

Nemotron 340Bnemotron213.7 GBcomfortableQ4 · / 256 GB
DeepSeek V2deepseek181.3 GBcomfortableQ5 · / 256 GB
DeepSeek Coder V2deepseek181.3 GBcomfortableQ5 · / 256 GB
★Qwen 3 235B A22Bqwen180.6 GBcomfortableQ5 · / 256 GB
★Qwen3 235B A22Bqwen180.6 GBcomfortableQ5 · / 256 GB
Falcon 180Bfalcon201.2 GBcomfortableQ8 · / 256 GB
Mixtral 8x22Bmistral157.6 GBcomfortableQ8 · / 256 GB
★Mistral Large 123Bmistral137.5 GBcomfortableQ8 · / 256 GB
★NVIDIA Nemotron 3 Super 120B A12B BF16nemotron134.1 GBcomfortableQ8 · / 256 GB
★Llama 4 Scout 17Bx16llama121.8 GBcomfortableQ8 · / 256 GB
★Command R+ 104Bcommand116.2 GBcomfortableQ8 · / 256 GB
★Qwen3 Next 80B A3B Instructqwen178.8 GBcomfortableFP16 · / 256 GB
★Qwen 2.5 72Bqwen160.9 GBcomfortableFP16 · / 256 GB
Qwen 2.5 VL 72Bqwen160.9 GBcomfortableFP16 · / 256 GB
★Qwen2.5 72B Instructqwen160.9 GBcomfortableFP16 · / 256 GB
Llama 2 70Bllama156.5 GBcomfortableFP16 · / 256 GB
Llama 3 70Bllama156.5 GBcomfortableFP16 · / 256 GB
Llama 3.1 70Bllama156.5 GBcomfortableFP16 · / 256 GB
★Llama 3.3 70Bllama156.5 GBcomfortableFP16 · / 256 GB
CodeLlama 70Bcodellama156.5 GBcomfortableFP16 · / 256 GB
★DeepSeek R1 Distill 70Bdeepseek156.5 GBcomfortableFP16 · / 256 GB
Hermes 3 70Bhermes156.5 GBcomfortableFP16 · / 256 GB
★Llama 3.1 Nemotron 70Bnemotron156.5 GBcomfortableFP16 · / 256 GB
Athene 70Bathene156.5 GBcomfortableFP16 · / 256 GB
★Llama 3.3 70B Instructllama156.5 GBcomfortableFP16 · / 256 GB
★Llama 3.1 70B Instructllama156.5 GBcomfortableFP16 · / 256 GB
★Mixtral 8x7Bmistral105.1 GBcomfortableFP16 · / 256 GB
Falcon 40Bfalcon89.4 GBcomfortableFP16 · / 256 GB
Command R 35Bcommand78.2 GBcomfortableFP16 · / 256 GB
Aya 23 35Baya78.2 GBcomfortableFP16 · / 256 GB

Tight models

These models barely fit. They can run, but context and speed will be limited.

★Llama 3.1 405Bllama254.6 GBtightQ4 · / 256 GB
Hermes 3 405Bhermes254.6 GBtightQ4 · / 256 GB
★Llama 4 Maverick 17Bx128llama251.5 GBtightQ4 · / 256 GB

Unlocked in a 2x rig

With two cards in parallel (512 GB total), larger models become reachable.

★DeepSeek V3.2deepseek430.6 GBcomfortableQ4 · / 512 GB
★DeepSeek V4 Prodeepseek430.6 GBcomfortableQ4 · / 512 GB
★DeepSeek R1deepseek421.8 GBcomfortableQ4 · / 512 GB
★DeepSeek V3deepseek421.8 GBcomfortableQ4 · / 512 GB
★DeepSeek R1 (0528 snapshot)deepseek421.8 GBcomfortableQ4 · / 512 GB

Similar GPUs

VRAM estimates updated 2026-05-12. Apple Silicon: part of unified memory remains reserved for the system.