iMac Pro power consumption and thermal output

Learn about the power consumption and thermal output (BTU) of iMac Pro (2017).

iMac Pro (2017)
27-inch Retina 5K display, 2.3GHz Intel Xeon W processor, 128GB 2666MHz DDR4 ECC memory, 4TB solid-state drive (SSD), Radeon Pro Vega 64 graphics processor with 16GB of HBM2 memory
Power Consumption (230V/50Hz)  Thermal Output
Idle CPU Max Idle CPU Max
64W 370W 218 BTU/h 1,262 BTU/h


  • Power consumption data (watts) is measured from the wall power source and includes all power supply and system losses. Additional correction isn't needed.
  • CPU Max is defined as running a compute-intensive test application that maximizes processor usage and therefore power consumption.
  • These numbers reflect a 23°C (73.4°F) ambient running environment. Increased ambient temperatures require faster fan speeds which increases power consumption. At 35°C (95°F), 50W should be added to reflect increased power consumption.
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