These new iMacs can't be used as external displays. The current version of DisplayPort can't handle the bandwidth necessary for 5k displays over a single connector, so Apple decided to cut the feature rather than only support 4k resolution, or require two connectors. So, the screen is stuck with this computer, and you can't use it with any other.
Probably not. I believe the processor options available for this have 84 and 88 watt max TDPs, while the 8 core I7 is rated at using up to 140 watts. It would most likely not be able to dissipate the heat under load.
Quando isso acontecer, você poderá ver um gráfico da reputação que ele adquiriu ao longo do tempo.
Aqui está uma prévia de como será o gráfico:
Nenhuma reputação adquirida ainda.