No. This model has 8 GB of onboard RAM by default, but it can be upgraded to 16 GB at the time of purchaseâfor an additional US $200. The RAM in this model is soldered to the logic board and cannot be upgraded later.
For other types of power, see Power. In physics, power is the rate of doing work. It is the amount of energy consumed per unit time. Having no direction, it is a scalar quantity. In the SI system, the unit of power is the joule per second (J/s), known as the watt in honour of James Watt, the eighteenth-century developer of the steam engine.
Power is defined as the rate of producing or consuming energy. Say this ten times: âPower and energy are not the same thing! Power is energy per unit of time.â. The standard unit of electrical power is the watt, which is defined as a current of one ampere, pushed by a voltage of one volt. More simply, volts x amps = watts (there is a complication if weâre talking about alternating current, but weâll ignore it for now). In the USA, the standard wall socket delivers 120 volts.