Hardware

91 GPUs, chips and CPU configurations

Advertised memory and peak bandwidth as published by each vendor. “Usable” is what a runtime can actually claim once the display and driver reserve is gone — that is the number every fit on this site is measured against.

AMD · Instinct

DeviceMemoryBandwidthUsableArchitectureModels that fit
Instinct MI300X 192 GB HBM3 5300 GB/s 190.4 GB CDNA 3 70 of 80 Open

Apple · Apple Silicon

DeviceMemoryBandwidthUsableArchitectureModels that fit
M2 Ultra · 192 GB 192 GB LPDDR5 unified 800 GB/s 144.0 GB M2 Ultra 68 of 80 Open

Missing a card? The table is hand-maintained, not scraped — every row was typed from the vendor's own spec sheet, which is why there are 91 of them and not ten thousand.