Do you need a new power supply for Nvidia’s GeForce RTX 3080?

Do you want to improve your continual provide for Nvidia’s GeForce RTX 3080 graphics card? That’s a priority many of us have, nevertheless it’s in reality two considerations clumped into one.

First, other folks concern they’ll desire a new PSU to care for the brand new 12-pin connector on Nvidia’s personal RTX 3080 Founders Version. 2nd, the RTX 3080 pulls extra wattage than even the prior-gen RTX 2080 Ti flagship. That is why Nvidia bumped the counsel continual provide score as much as 750 watts to compensate, up from a 650W most final go-round.

Any such questions is modest to respond to. The opposite takes some explaining. Let’s dig in.

Do you want a brand new continual provide for the RTX 3080’s 12-pin continual?


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Nvidia’s 12-pin continual connector

Sure, Nvidia created a proprietary new 12-pin continual connectors to suit at the shortened customized PCB within its GeForce RTX 3080 Founders Version. However the Founders Version ships with an adapter that converts a couple of Eight-pin continual cables to the brand new 12-pin connector. Plug it in and it simply works. Observe that Nvidia suggests the use of separate Eight-pin connectors plugged into your continual provide, fairly than the use of a unmarried PSU cable with a couple of connections daisy-chained at the industry finish.

That mentioned, when you’ve got a clear case window and care about aesthetics, Nvidia’s 12-pin adapter appears to be like janky to your case. It’s too brief and chunky, or even quite blocks the illuminated white “GeForce RTX” emblem at the fringe of the cardboard. If you happen to don’t adore it, some continual provide makers reminiscent of Seasonic and EVGA will be offering full-length 12-pin to 2x Eight-pin cables, which you’ll be able to purchase and slip without delay into your present modular PSU.

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The fast 12-pin adapter plugs into the middle of the Founders Version, in a connector embedded within the card’s fin stack.

No different RTX 3080 graphics playing cards introduced thus far characteristic Nvidia’s 12-pin connector. The whole thing however the Founders Version sticks to plain Eight-pin connectors.

Do you want a larger continual provide for RTX 3080?


The GeForce RTX 3080 is rated for 350W of overall board continual, and Nvidia recommends the use of a 750W continual provide with it. That’s much more than prior-gen Founders Version graphics playing cards required. The GTX 1080 wanted just a 500W continual provide, whilst the RTX 2080 and 2080 Ti required a 650W PSU. In case you have an influence provide below 750W, you can almost certainly need to imagine upgrading.

All that mentioned, the GeForce RTX 3080 may paintings when you’ve got an excessively environment friendly 650W continual provide. We check complete machine continual draw for our graphics card checks. In a machine with a six-core Core i7-8700Ok, two SSDs, 32GB of rapid reminiscence, a liquid CPU cooler, and RGB lighting fixtures galore, the RTX 3080 Founders Version maxed out at 482W of overall machine continual draw.

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The Nvidia RTX 3080 in our GPU check machine.

That’s no longer a worst-case state of affairs even though. We check continual in a GPU-bound sport at a GPU-bound 4K answer to look what occurs when the graphics card particularly is driven to the max. For our video games trying out, we overclock the 8700Ok to 5GHz on all cores, which places its efficiency on a par with the inventory Core i9-10900Ok, according to TechSpot’s benchmarks. With that overclock carried out, we noticed the machine draw between 500W and 550W of overall continual in some video games that hit the CPU laborious too, like GTA V and General Warfare: Troy. More moderen programs with extra cores driven below an competitive overclock may just clearly draw extra.

Elementary quantity talents inform you that 550W continues to be below 650W. Relying on the remainder of your setup, and the way sizzling it’s to your room, it is advisable to almost certainly run the RTX 3080 on a 650W continual provide. However PSUs vary in how they ship the wattage marketed at the field. Much less environment friendly continual provides want to draw extra power out of your wall socket to hit their rated maximums. An 80 Plus Bronze-rated continual provide will convert no less than 82 p.c of your wall power to PSU output, with the remainder wasted as warmth. A dear 80 Plus Platinum PSU converts 89 to 92 p.c of the facility it attracts from the wall to precise output into your laptop, relying at the load.

So what? The fewer environment friendly your PSU is, the fewer dependable it’s, and the more difficult it has to paintings to transform wall power to precise continual output. An influence provide that should paintings more difficult has a tendency to supply much less reliability and longevity than extra environment friendly fashions. Being in a sizzling room too can cut back your continual provide’s output.

asus geforce gtx 3080 psu voltage rail monitor Asus

Asus has constructed a serve as into its ROG Strix RTX 30-series playing cards to sense if the PSU is not able to stay alongside of a lot. The LED lighting fixtures will blink if there’s a continual sag.

Which may be a topic with the larger continual calls for of the RTX 30-series. Don’t take our phrase for it–Asus mentioned precisely that whilst appearing off its ROG Strix RTX 3080, which incorporates sensors on its trio of Eight-pin continual connectors to turn you in the event that they’re getting the power they want. From our protection:

“The corporate mentioned a contemporary GPU can cross from the use of just about no continual to unexpectedly spiking to loads of watts. That’s one thing a borderline PSU, or one who’s been pushed laborious, will not be as much as, Asus mentioned. ‘And even though they have got a high-power PSU, if it’s been run laborious for plenty of years, its voltage law might not be ok to deal with the short load adjustments,’ the corporate added.”

Your continual provide isn’t the one worry if you happen to’re purchasing a GeForce RTX 3080 with simply two Eight-pin continual connectors, like Nvidia’s Founders Version. The RTX 3080 is rated for 320W of overall board continual. Each and every Eight-pin continual connector can provide 150W of juice, leaving your motherboard’s PCIe slot to pump out the remainder. Now, PCIe slots are rated for 75W of continual, however less-complex motherboards might battle to take action, Asus warns.

“This method is completely inside spec, however it’s going to create further power-delivery and thermal calls for that some motherboards will not be constructed for,” the corporate mentioned—particularly if you wish to overclock your graphics card. Asus and plenty of different third-party graphics card providers have constructed their higher-end RTX 3080 choices with a trio of Eight-pin continual connectors to relieve the possible factor.

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The ones are numerous phrases to get again the place we began. Do you want a larger continual provide for RTX 3080? Unquestionably possibly. I’d strongly counsel the use of no less than a 750W PSU like Nvidia recommends, particularly if you happen to’re the use of a machine that’s filled with finances or mainstream portions which have been ridden laborious the previous few years.

I’ll shut this with an anecdote. My private machine packs an 80 Plus Platinum-rated 650W EVGA Supernova P2 continual provide and a high-end Gigabyte Aorus X370 motherboard. I threw the GeForce RTX 3080 FE in it to look what would occur, and it labored simply tremendous for an evening of gaming at the entire primary resolutions—but when I deliberate on the use of it long-term, I’d really feel a lot more relaxed upgrading to a 750W unit like Nvidia recommends.

Comparable Nvidia RTX 30-series tales:

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