[jinmingjian]

Great to see the this SBC benchmark. I have done one benchmark for several available SBCs from an edge data stack viewpoint (Edge Data Stack Capabilities Ranking: https://joinbase.io/ranking/, but the article is still in progress...so sorry for no content now)

What I have tested : $20 RockPi S(minimum squared Armv64 dev board), $0 unused IPTV box (S905L2 chip)(should be bought from secondhand market in ~ $7), #30 NanoPi Neo3(the minority of cheap SBC with DDR4 on), the Allwinner D1(the first batch avaiable Risc-v 64 board) and my own Xeon server (and more cloud based instances).

A possibly surprising fact is that, if the modern software (such as my database here) can take full advantage of the modern hardware, then the performance of even a small 40mm squared SBC board (such as RockPi S) can be compared to the large-scale-used traditional softwares running on a Xeon Platinum 8260 based bare-metal server(such as PostgreSQL).