It's totally possible to get to 80 general purpose compute servers to a rack, with a power draw of around 15kW. I prefer the Supermicro FatTwin, but there are other options with similar density.
It usually isn't worth going to a mega dense rack (25kW or whatever), because unless you built the entire site with this in mind, you'll probably run out of power before you run out of space. Then you spent extra on these extreme density solutions for no real return. It can still make sense, if the entire solution is thought out.
It usually isn't worth going to a mega dense rack (25kW or whatever), because unless you built the entire site with this in mind, you'll probably run out of power before you run out of space. Then you spent extra on these extreme density solutions for no real return. It can still make sense, if the entire solution is thought out.