ASUS GeForce RTX 3090 STRIX OC Review - Hardware setup | Power consumption

Hardware Installation

The installation of any of the Nvidia GeForce cards is straightforward. Once the card is seated into the PC make sure you hook up the monitor and of course any external power connectors like 6/8-pin or the new 12-pin PEG power connectors. Preferably get yourself a power supply that has these PCIe PEG connectors natively. Purchase a quality power supply, calculate/estimate your peak power consumption for the entire PC, and double that number for the power supply as your PSU is the most efficient at half the load value. So if during gaming you consume 300W Watts on average for the entire PC, we'd recommend a 600 Watt power supply as a generic rule.
    

• Download the latest NVIDIA GeForce drivers here

Once done, we boot into Windows, install the latest drivers and after a reboot, all should be working. No further configuration is required or needed unless you like to tweak the settings, for which you can open the NVIDIA control panel. 

Power Consumption

Let's have a look at how much power draw we measure with this graphics card installed. The methodology: we have a device constantly monitoring the power draw from the PC. We stress the GPU to the max, and the processor as little as possible. The before and after wattage will tell us roughly how much power a graphics card is consuming under load. We'll be calculating the GPU power consumption here, not the total PC power consumption. The system wattage is measured at the wall socket side and there are other variables like PSU power efficiency. So this is an estimated value, albeit a very good one. Below, a chart of relative power consumption. The Wattage shown is the card with the GPU(s) stressed 100%, showing the peak GPU power draw, not the power consumption of the entire PC and not the average gaming power consumption.

Here is our power supply recommendation:

• GeForce RTX 3070 - On your average system we recommend a 550 Watt power supply unit.
• GeForce RTX 3080 - On your average system we recommend a 650 Watt power supply unit.
• GeForce RTX 3090 - On your average system we recommend a 750 Watt power supply unit. 
• if you max out the power limiter on this card, we'd advise an 850 Watts PSU.

If you are going to overclock your GPU or processor, then we do recommend you purchase something with some more stamina.  There are many good PSUs out there, please do have a look at our many PSU reviews as we have a lot of recommended PSUs for you to check out in there. Let's move to the next page where we'll look into GPU heat levels and noise levels coming from this graphics card.