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GPU comparison

Mac Studio M2 Ultra (192GB) vs NVIDIA RTX 6000 Ada (48GB) for local LLMs

How the two stack up for running open-source LLMs locally — memory, bandwidth, price, and how many of the 18 tracked models each one can run.

Mac Studio M2 Ultra (192GB)NVIDIA RTX 6000 Ada (48GB)
Memory192.0 GB48.0 GB
Bandwidth800 GB/s960 GB/s
Price (approx)$5,599$6,800
LLMs it runs16 of 1816 of 18
Best model it runsGemma 4 31B · 13–19 tok/sGemma 4 31B · 21–31 tok/s

Both run the same number of models, but the Mac Studio M2 Ultra (192GB) has more memory (192.0 GB), so it can hold larger models at higher quality. The NVIDIA RTX 6000 Ada (48GB) has more memory bandwidth (960 GB/s), so it generates tokens faster at the same model and quant.

What the Mac Studio M2 Ultra (192GB) runs →What the NVIDIA RTX 6000 Ada (48GB) runs →Open the calculator →