can-i-run-this-llm

GPU comparison

MacBook Pro M5 Pro (24GB) vs NVIDIA RTX 4090 (24GB) for local LLMs

How the two stack up for running open-source LLMs locally — memory, bandwidth, price, and how many of the 64 tracked models each one can run.

MacBook Pro M5 Pro (24GB)NVIDIA RTX 4090 (24GB)
Memory24.0 GB24.0 GB
Bandwidth307 GB/s1008 GB/s
Price (approx)$2,199$2,999
LLMs it runs45 of 6447 of 64
Best model it runsQwen3.8 27B · 14–21 tok/sQwen3.8 27B · 38–57 tok/s

The NVIDIA RTX 4090 (24GB) runs 2 more of the tracked models (47 vs 45). With the same nominal memory, more of it is usable for model weights on this architecture. The NVIDIA RTX 4090 (24GB) has more memory bandwidth (1008 GB/s), so it generates tokens faster at the same model and quant.

What the MacBook Pro M5 Pro (24GB) runs →What the NVIDIA RTX 4090 (24GB) runs →Open the calculator →