The Baikal BK-B Asic miner is manufactured by Baikal. This miner can run multiple algorithms. Firstly, it runs Blake256R14 algorithm at hash rate ~ 160GH/s with power 410W.
The Bitmain Antminer A3 Asic miner is manufactured by Bitmain. It runs Blake2B algorithm at hash rate ~ 815GH/s. Furthermore, its power usage is about 1275W.
Siacoin (SC) is a PoW coin. It is minable. Mining Siacoin SC using with the Blake2B algorithm. So Siacoin SC is a single algorithm coin.