Sell an RTX 5090 for a Mac Studio M5 Ultra 96GB? Weighing 1.8 vs 1.2 TB/s Bandwidth for Local AI
unchikuso · reddit · 2026-09-13
The author is considering selling an RTX 5090 for $5k and buying a Mac Studio M5 Ultra 96GB at $5499 before tax, primarily for coding and local AI work. The key trade-off: the 5090 offers 1.8 TB/s memory bandwidth vs the M5 Ultra's 1.2 TB/s, but the Mac brings 96GB of unified memory. The thread weighs whether that's a sensible upgrade for local model deployment.
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