system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What makes AMD graphics cards so popular for cryptocurrency mining, and why does it matter?
gpt
They are generally a good deal cheaper than Nvidia cards and for a good while now the architecture That AMD has been using (GCN aka graphics core next) turns out is really good for mining operations and better than Nvidia. So it makes sense for miners to use AMD since the cards are cheaper and they get better mining performance with AMD cards. So they make more money and cover their investment faster.