Power Mac G5: Power Consumption and Thermal Output (BTU) Information

Learn about the power consumption and thermal output of Power Mac G5 computers.

Power Mac G5 1.6 GHz Configuration: 1.6 GHz G5 microprocessor, 800 MHz Frontside Bus, 512 KB L2 cache, 256 MB DDR333 128 bit SDRAM, Expandable to 4 GB SDRAM, 80 GB Serial ATA, SuperDrive, (3) PCI Slots, NVIDIA GeForce FX 5200 Ultra, 64 MB DDR video memory, 56 kbit/s internal modem
Power Consumption		Thermal Output
Idle	Max	Idle	Max
120 W	420 W	410 BTU/h	1420 BTU/h
Power Mac G5 1.8 GHz Configuration: 1.8 GHz G5 microprocessor, 900 MHz Frontside Bus, 512 KB L2 cache, 512 MB DDR400 128 bit SDRAM, Expandable to 8 GB SDRAM, 160 GB Serial ATA, SuperDrive, (3) PCI-X Slots, NVIDIA GeForce FX 5200 Ultra, 64 MB DDR video memory, 56 kbit/s internal modem
Power Consumption		Thermal Output
Idle	Max	Idle	Max
120 W	430 W	410 BTU/h	1466 BTU/h
Power Mac G5 Dual 1.8 GHz Configuration: Dual 1.8 GHz G5 microprocessor, 900 MHz Frontside Bus, 512 KB L2 cache, 512 MB DDR400 128 bit SDRAM, Expandable to 8 GB SDRAM, 160 GB Serial ATA, SuperDrive, (3) PCI-X Slots, NVIDIA GeForce FX 5200 Ultra, 64 MB DDR video memory, 56 kbit/s internal modem
Power Consumption		Thermal Output
Idle	Max	Idle	Max
140 W	604 W	410 BTU/h	2060 BTU/h
Power Mac G5 Dual 2 GHz Configuration: Dual 2 GHz G5 microprocessor, 1 GHz Frontside Bus, 512 KB L2 cache per microprocessor, 512 MB DDR400 128 bit SDRAM, Expandable to 8 GB SDRAM, 160 GB Serial ATA, SuperDrive, (3) PCI-X Slots, ATI Radeon 9600 Pro, 64 MB DDR video memory, 56 kbit/s internal modem
Power Consumption		Thermal Output
Idle	Max	Idle	Max
140 W	604 W	410 BTU/h	2060 BTU/h

Notes

1. The term "Max" in this table means maximum process utilization.
2. Numbers assume no power draw from external peripherals, including monitors with an Apple Display Connector, USB, or FireWire devices.
3. AC input power assumes an 80 percent efficient power supply.