Performance/watt it not everything. It's not really even something. It's a derivative concern. The only reason I care about performance/watt is becaus

Performance/watt it not everything. It's not really even something. It's a derivative concern. The only reason I care about performance/watt is because I actually care about noise, heat and battery life. In 10 years this is one of the more confusing I've ever seen on HN. You care about noise, heat, and battery life but you don't care about performance/watt? Performance/watt is a "derivative" concern, but somehow those metrics aren't? Presumably, all you really care about is raw performance then? Well, OK, fair enough. We can all care about different things. But even though, performance/watt still rules: for all practical purposes the watts part constrains the performance part. For a given power supply and cooling system, you can only draw and dissipate X number of watts. So you are back to the question of how much performance the system can provide given X watts. Even no-compromises cooling solutions most would consider highly impractical (involving liquid nitrogen etc) run into this issue at some point. So yeah, you actually do care about performance/watt?