一応ソースもまとめとく

ODROID-C2 ARM SBC Offers Great Performance For $40 - Phoronix Forums
https://www.phoronix.com/forums/forum/hardware/processors-memory/861649-odroid-c2-arm-sbc-offers-great-performance-for-40/page3
> Actually most Cortex-A53 implementations, including those from ODROID C2 & Raspberry Pi 3,
> do not implement the optional AES & SHAx instructions.

Amlogic S905, S905X, and S912 Processors Appear to be Limited to 1.5 GHz, not 2 GHz as Advertised
https://www.cnx-software.com/2016/08/28/amlogic-s905-and-s912-processors-appear-to-be-limited-to-1-5-ghz-not-2-ghz-as-advertised/
> 1. armv8 crypto extensions is optional for armv8 SoC.
> 2. crypto extension can be used under aarch32/aarch64 mode.
> 3. S905/BCM2837 did not have armv8 crypto extensions(AES/SHA).
> 4. Most ARMv8 SoC now include crypto extensions just for better looking benchmark numbers(GeekBench).

$ openssl speed -evp aes-gcm | aes-ctr の結果を集めるスレ · GitHub
https://gist.github.com/voluntas/fd279c7b4e71f9950cfd4a5ab90b722b#gistcomment-2160576
https://gist.github.com/voluntas/fd279c7b4e71f9950cfd4a5ab90b722b#gistcomment-2160298

Nanopi Neo2 4.11 kernel - Allwinner A64 & H5 - Armbian forum
https://forum.armbian.com/topic/4530-nanopi-neo2-411-kernel/?tab=comments#comment-35173

http://linux-sunxi.org/A64
http://linux-sunxi.org/H5