K12 was to be AMD's first custom microarchitecture based on the ARMv8-A (AArch64) instruction set[1] with a planned release in 2017.
[2][3] Its predecessor, the Opteron A1100 series, also ARMv8-A, used ARM Cortex-A57 cores.
[4] As of 2023 the product has officially been canceled.
[5] The microarchitecture was to focus on high frequency and power efficiency and was to target the dense server, embedded and semi-custom market segments.
[6] This microcomputer- or microprocessor-related article is a stub.