I also see this issue. I benchmarked my Mac Pro’s Radeon Pro 580X against this simple CNN model: https://github.com/macports/macports-ports/pull/12678 Apple GitHub tensorflow_macos alpha3: 5 s/epoch PyPi tensorflow-macos v2.6 + tensorflow-metal v0.2: 15 s/epoch (3X slower) Mac Pro 12-core Xeon W CPU: 10 s/epoch Tesla V100: 1 s/epoch I conclude that there are still some significant alpha-release issues with tensorflow-macos/tensorflow-metal.

Related issue: https://developer.apple.com/forums/thread/709142

Related issue, with code: https://developer.apple.com/forums/thread/725246

Another related issue: https://developer.apple.com/forums/thread/693678

With openssl version 3.2.0, use: openssl pkcs12 -legacy