Best PSUs to Buy for the RTX 5070

The NVIDIA GeForce RTX 5070 is a powerful graphics card targeted at gamers looking to play at 1440p and 4K. This GPU has received a decent upgrade compared to its predecessor, the RTX 4070 SUPER, with performance improvements across varying resolutions. However, with any new graphics card hitting the shelves, one of the big questions we often ask is how much power it consumes. That’s why we’ve tested a range of power supplies to determine which ones are the best to pair up with the RTX 5070 graphics card.

This series of buyer’s guide articles explores the best CPUs, cases, and power supplies for the RTX 5070. In this specific article, we’ll delve into the best power supply units. We’ve rounded up a great selection of power supplies that cater to builders looking for a budget option or a power supply with a bit more oomph for more challenging workloads.

Our Top Pick: ASUS TUF Gaming 750W

The best PSU to buy for the NVIDIA RTX 5070 is the ASUS TUF Gaming 750W unit. This power supply is reliable, offers ample wattage for an RTX 5070 build, and utilises the ATX 3.0 standard. This PSU features the 16-pin graphics card cable, allowing you to plug in just one cable for the RTX 5070 , and the 80 Plus Gold certification ensures this power supply will operate efficiently, minimising excess power loss. Definitely a worthwhile pickup for an RTX 5070 build.

$183.75 at Amazon

Last updated: 2025-03-04 04:52:34 ET

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The Best PSUs for the RTX 5070

1. ASUS TUF Gaming 750W

The top pick in this power supply roundup is the ASUS TUF Gaming 750W unit. We’ve used this power supply in various builds because it is exceptionally reliable, offers an excellent efficiency rating, and is priced competitively compared to market alternatives. This power supply provides 750W of power, which is ample for the RTX 5070.

This unit is ATX 3.0 certified, meaning that transient spikes are a thing of the past, and this PSU can sustain high power draw without shutting off. The ASUS TUF Gaming 750W PSU is also 80 Plus Gold certified, which means that at 50% loads, any excess power draw is minimised. This PSU is the most efficient at 50% loads but operates well at 20% and 100% power draw.

The TUF Gaming 750W power supply is fully modular, allowing you to pick and choose precisely what cables you need for your build, streamlining cable management. This unit also supports the 16-pin GPU cable, providing one clean wire for your RTX 5070.

Regarding the cons, the ASUS TUF Gaming 750W doesn’t have a Cybenetics certification, which doesn’t give any buyer’s assurance about the noise levels or validate the efficiency rating. Furthermore, there are only three PCI-E slots on this power supply, limiting your options if you’re building a system with iCUE LINK.

2. Corsair RM750X

Next is the Corsair RM750x, another 750W unit offering reliable power draw and efficiency. This power supply is more than ample for the RTX 5070, which has a total graphics power of 250W. The RM750X is ATX 3.1 certified and PCI-E 5.1 compliant, which means any large transient spikes won’t damage your PSU or force it to switch off.

PCI-E 5.1 compliance allows you to use a single cable for your RTX 5070 with a 16-pin power cable. This avoids using the rather unsightly PCI-E adapters while streamlining cable management.

Cybenetics has given the RM750X a gold rating, ensuring that any excess power draw that could be lost as heat or noise is minimised. The gold rating specifically guarantees the best performance at 50% loads. The Corsair RM750X also has an A- noise rating from Cybenetics, guaranteeing near-silent operation across varying load levels. Corsair further assists this by switching off the 140mm fan once the system load is low.

Regarding the cons, the main caveat of this power supply is its price. This is more of a premium unit, and because of this, it isn’t the most price-competitive 750W power supply we’ve seen. So, if you’re sticking to a particular budget, it may be worth considering an alternative 750W PSU.

3. MSI MAG A650BN

Last but not least is the MSI MAG A650BN. This 650W power supply offers an 80 Plus Bronze rating. It is more of a budget power supply, hence the weaker efficiency. However, the MAG A650BN is a solid unit for those restricted to a certain price. The 80 Plus Bronze certification guarantees 85% efficiency at a 50% load, minimising additional power loss.

The MSI MAG A650BN is a non-modular unit, meaning all cables are already built into the power supply. This does make cable management slightly more complex, but it also allows you to install the PSU straight into your case without any hassle. The 120mm fan also ensures ample airflow for the unit, keeping it cool during demanding workloads.

It is worth noting that the MSI MAG A650BN isn’t ATX 3.0 or PCI-E 5.0 certified, which means you’ll likely have to use an adapter for the RTX 5070. However, this is a relatively small caveat considering the price of this unit.

The biggest weakness of this power supply is that it’s aimed at prospective buyers as a budget power supply. Because of this, it doesn’t have features that would benefit NVIDIA GPU owners, such as PCI-E 5.0 support, a higher efficiency rating, or even modular cables, which are lacking on the A650BN. This doesn’t make this a bad power supply, but it may be worth considering the alternatives if you’re looking for a more versatile option.

Frequently Asked Questions

Do I Need a 16-Pin GPU Cable?

While the 16-pin GPU cable isn’t required, it will make building much easier and cleaner, as you won’t need to use the pesky adapters supplied with the cards.

How Much Power Does the RTX 5070 Consume?

The RTX 5070 consumes 250W of power, requiring a 600W power supply as a minimum.

Is Efficiency Important?

It can be helpful if your build draws a lot of power, but the vast majority of modern power supplies will be efficient and designed to minimise excess power output.