Can I Run GPT-oss 120B on Apple M5 Pro?

作者： Jakub Rusinowski · 最后更新： 2026年7月10日

No — the GPT-oss 120B family does not fit in the Apple M5 Pro's 64 GB VRAM.

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Apple M5 Pro Specs

VRAM64 GB unified memory
Memory Bandwidth307 GB/s

Why It Does Not Fit

Every GPT-oss 120B variant requires more VRAM than the Apple M5 Pro provides (64 GB).

Nearest GPU That Fits

NVIDIA A100 80GB (80 GB VRAM).

NVIDIA A100 80GB PCIe
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FAQ

Can I run GPT-oss 120B on the Apple M5 Pro?

No — the GPT-oss 120B family does not fit in the Apple M5 Pro's 64 GB VRAM.

What GPU should I get instead to run GPT-oss 120B?

The NVIDIA A100 80GB (80 GB VRAM) is the cheapest upgrade that fits it.

GPT-oss 120B on Other GPUs

Popular Models on the Apple M5 Pro

VRAM Tier

Troubleshooting

Buying Guide

← Can I Run It? | GPT-oss 120B Model Page | Apple M5 Pro GPU Page | Check Your Hardware