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eXtreme Power Supply Calculator


        



Real Power Consumption

eXtreme Power Supply Calculator is the most accurate PC power consumption calculator available and is trusted by computer enthusiasts, PC hardware and power supply manufacturers across the Globe. Are you building a modern gaming PC, low power HTPC media server, or maybe you need to figure out power requirements for a rack in a data center? We've got you covered - eXtreme PSU Calculator will help you to select a suitable power supply unit and even Uninterruptible Power Supply (UPS) for your system.

Video Card Overclock

Basic version of the eXtreme Power Supply Calculator allows users to quickly estimate power consumption with minimal selection of PC parts. On the other hand, our Expert, more advanced version of the PSU Calculator greatly extends the ability to select various PC parts and components, adds CPU and highly anticipated Graphics card overclocking!
X
CPU count applies only if the system has more than 1 physical CPU.
X
X
(SLI / CF)
X
X
X
X
Note: Standard keyboard, mouse, and 8 hours of computer utilization per day already included in calculations.
Results:
Click 'Calculate' button to view
Recommended Power Supply Wattage

     
X
CPU count applies only if the system has more than 1 physical CPU.
CPU Speed
Mhz
CPU Vcore
V

X
FB DIMMs?
X
FB DIMMs?
X
(SLI / CF)
Core Clock
Mhz
Memory Clock
Mhz
X
(SLI / CF)
Core Clock
Mhz
Memory Clock
Mhz
X
X
X
X
X
X
X
X
X
X
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X USB 2.0 Devices
X USB 3.0 Devices
X FireWire Devices
X Fan Controller Devices
X Fan Controller / Bay with LCD
X Front Bay Card Reader
X Cold Cathodes
X
X
X 80mm
X 92mm
X 120mm
X 140mm
X 200mm
X 250mm
X
Computer Utilization is directly related to PSU's components aging. When used heavily and over an extended period of time (1+ years), the power supply will slowly lose some of its initial wattage capacity, so plan accordingly!
Results:
Click 'Calculate' button to view
Recommended Power Supply Wattage