ASIC's never took over mining ethereum because the algo was memory hard and producing ASIC's wasn't as profitable as just throwing GPUs at the problem... https

ASIC's never took over mining ethereum because the algo was memory hard and producing ASIC's wasn't as profitable as just throwing GPUs at the problem... https://www.vijaypradeep.com/blog/2017-04-28-ethereums-memory-hardness-explained https://www.vijaypradeep.com/blog/2017-04-28-ethereums-memor... At the peak, there were around 18-25m GPUs deployed worldwide. Source: I mined with 150k AMD GPUs.