Single-thread performance is not king though. Software nowadays is extensively multi-threaded. If you're still writing single threaded code for a desktop progra

Single-thread performance is not king though. Software nowadays is extensively multi-threaded. If you're still writing single threaded code for a desktop program people are going to look at you like you have antenna growing out of your head. And performance per watt absolutely is important. People care a lot about battery life of their laptops and phones and that's strongly dependent on performance per watt.