Developer criticizes MLX for low bandwidth utilization on M5 Max
andrejusb · x · 2026-08-26
Developer @Youssofal criticized Apple's MLX framework for poor performance, noting that BF16 training only saturates 220-230GB/s on the M5 Max (614GB/s bandwidth), wasting resources. He blamed immature kernels rather than hardware. @ivanfioravanti countered that such arrogant tones are unhelpful and emphasized the need for collaboration over conflict.
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