RTX 3090 Ready PSU - Quick Look

Staff Writer By Staff Writer - September 7th, 2020
Share This Article

How much power does it take to run the RTX 3090? An excellent question and perfectly timed because today we’re taking a closer look at PC power supplies that have the needed 3x 8-Pin PCIe power cables for people who are getting the highest end, aftermarket RTX 3090 graphics cards.

For those new to high end graphics cards and what it takes to power them, there are power cables for different parts inside a PC that come from the main power supply unit. These have special shaped connectors to help users plug them into the right components. Recently the top end graphics cards used 2x 8-Pin PCIe power cables, and most power supplies included this. Some smaller graphics cards only require 1x or 2x 6pin, which is why the power cables pull apart in a 6+2 configuration. Only some of the new RTX 3090 graphics cards look like they will require 3x 8-Pin PCIe power cables connected to run, and all the RTX 3080 and RTX 3070 look like they still only need 2x.

This gets a little more confusing for some new PC gamers as the specification often refers to the 8-Pin as a ‘6+2Pin’, which is also different from the ‘4+4Pin’...

It’s amazing how many power supplies come up short, no need to worry about all that though.

We’ve taken a look at the range and found a great power supply, specifically chosen for RTX 3090 owners to be. Nvidia recommends a 750w or higher for the RTX 3090 so that’s where we will be looking today, let’s get to it!

EVGA SuperNOVA G5 750W 80+ Gold Fully Modular PSU

EVGA, who are Nvidia’s only exclusive graphics card partner, have also been in the business of making great power supplies for many years. Their latest EVGA SuperNOVA G5 PSU is ready for RTX 3090, while still being quite affordable, packed full of premium components and backed by a 10 year warranty.

It’s not just a new GEN for the sake of it either, the G5 features a larger fan than the G3 to reduce noise without increasing the size of the power supply. Where’s the G4 you ask? I suspect this could have been avoided due to superstition, so G5 it is!

As the successor to the award-winning G3 series, the G5 power supplies continue to push the envelope with the latest certifications and efficiency standards, joining the elite ranks of the EVGA 80 PLUS Gold power supplies. Looking closer at the 80 PLUS Gold certification, this ensures your power supply isn't wasting power and turning it into excess heat. Under typical load, this power supply is 91% efficient or higher.

The fully-modular cable design, let’s us use only the cables we need, reducing cable clutter and improving case airflow. With 100% Japanese capacitors used, which are well known for having the best reliability and greatest performance, and that new ultra-quiet 135mm Fluid Dynamic bearing fan, these EVGA power supplies are built for performance and silence.

Picture of EVGA 750w G5 Power Supply ready for RTX 3090

This is just a favourite from the range, when shopping for a power supply you can check which cables are available within the specifications, just remember that the PCIe 6+2Pin are the 8-Pin cables you want, and you’ll be needing at least 3x. You can also quickly check pictures of modular PSU options to see if they have the plug sockets needed, checking for those with 1xPin for CPU and at least another 3x for GPU.

The EVGA SuperNOVA G5 750W has the connections needed to be ready for RTX 3090, shop the full range of EVGA power supplies today!


Written By

Staff Writer

For the words, not the glory!

Share This Article

Write a Comment

Log In to post a comment



Can you SLI an RTX 3090?

Read more
1 year ago Reply Report


Yup, the 3090 will support NVLink, so you will need the bridge like usual (i believe), However the 3070, and 3080 will not support NVLink (the new version of SLI)

Read more
1 year ago Reply Report


I haven't seen any with the slots for the bridge typically used, but maybe nvidia are going to do it like AMD crossfire without no bridge needed... that would be nice.

Read more
1 year ago Reply Report