Best PSU for 4070 Ti in 2023 – our top picks for December

Best PSU for 4070 Ti in 2023 – our top picks for December
Rory Greig Updated on by

Video Gamer is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Prices subject to change. Learn more

Looking for the best PSU for your RTX 4070 Ti? We’ve got you covered right here. Chances are you’ve secured yourself one of the best RTX 4070 Ti GPUs, so you’ll need to find the best PSU for your shiny new card…but where to start?

Well, the most important thing to consider when looking for a PSU for cards, especially in the RTX 40 series, is whether it has enough watts to power your card and whether its dimensions will fit into your case. Alongside that, you might also consider getting a modular power supply that could help with cable management. Finally, prioritise power supplies that come with a warranty, ideally for at least five years. This way you’ll have peace of mind should anything go unplanned.

Best PSU for RTX 4070 Ti

And since the power supply also powers the rest of your computer as well, including the CPU and Motherboard, you will want a larger wattage than the RTX 4070 Ti’s minimum requirements, to avoid your system being throttled by power supply issues.

That being said, there’s a risk of overcompensating for the power in your PSU, which is why we’re here to help you find the right one. If you’re short on time, we can cut straight to the chase. We think the best PSU for the RTX 4070 ti is the MSI MPG A850G PCIE5, thanks to its ATX 3.0 support and built-in power surge protection.

Read on for more quality options and alternatives, and our expert take on why you should consider them for your new card.

1. Best PSU for RTX 4070 Ti

MSI MPG A850G PCIE5

Dimensions

5.9 x 5.9 x 3.4 inches

80 PLUS Certification

GOLD

Wattage

850W

Modularity

Full

Pros
  • ATX 3.0 support
  • Built in power surge protection
Cons
  • Expensive

The MSI MPG A850G PCIE5 is our top choice for the RTX 4070 Ti and one of the best 850W PSUs in general. We’ve chosen it since it natively supports the new ATX 3.0 connector which means you won’t have tons of tangled cables in your PC. It’s also fully modular thanks to 12VHPWR, keeping that cable clutter down to a minimum.

A must when it comes to choosing a PSU is its power efficiency, as well as its power delivery. This PSU is rated 80 Plus Gold which provides pretty good efficiency. It isn’t the best, but it still does very well. It also provides your PC with a little security thanks to in-built protection to prevent power surges and malfunctions that might otherwise damage your PC components.

This PSU also stands out thanks to its ‘quiet mode’, limiting the fan speed so the PSU can run efficiently, especially under smaller workloads. However, it’s not recommended to put your PC under heavy loads in quiet mode, so we’d advise avoiding using ray-tracing, gaming, and especially overclocking.

As for looks when inside your gaming PC or desktop, you won’t find anything like RGB lighting here, but this PSU boasts high-quality, high-end components, and a unique and stylish finish. Its color scheme is not brash, allowing it to fit into any build, while at the same time, the lines and splashes of silver give it a visually impressive aesthetic.

These factors, alongside its high power, make it among the best PSUs for the RTX 4080 as well.

2. Runner up for best PSU for RTX 4070 Ti

Corsair RM750x

Dimensions

6.3 x 5.9 x 3.4 inches

80 PLUS Certification

Gold

Wattage

750W

Modularity

Full

Pros
  • Fully modular
  • Greta cable management
Cons
  • Expensive

Like the MSI MPG A850G PCIE5, the Corsair RM750x is a high-quality PSU that will pair extremely well with your 4070 Ti thanks to its excellent build quality and ample power.

It’s smaller than its predecessor but is still the largest of our selection of PSUs. This version comes with several improvements, namely its compact form factor and quieter fan profile. Its noise output is around 15 dBA, making it a good PSU for those after silent-focused builds.

It features a fully modular design and comes equipped with two EPS connectors and four PCIe connectors. Overall, this makes the building process slightly easier than say, the SeaSonic Focus which comes with a lot of potentially unused cables. It’s very efficient with a Gold efficiency rating, the Corsair RM750x will do you and your 4070 Ti well.

3. Best efficient PSU for RTX 4070 Ti

SeaSonic FOCUS Plus Platinum

Dimensions

5.5 x 5.9 x 3.4 inches

80 PLUS Certification

Platinum

Wattage

850W

Modularity

Full

Pros
  • Brilliant efficiency
  • Fully modular
Cons
  • Comes with cables you may not need

The SeaSonic FOCUS is a brilliant PSU for your 4070 Ti.

We’ve chosen this card because it’s compact, meaning it’s unlikely to crowd your PC case and compromise your GPU clearance. It also has a Platinum energy efficiency rating. It also stands out with an overall low running noise, plus has Fanless Mode, Silent Mode, and Cooling Mode. The reason why it’s not top of our list is that it comes with a lot of cables, which can make your PC case messy and crowded. When it comes to power supplies, SeaSonic is often a recommended brand, and this fully modular option will be a brilliant fit for your PC setup.

4. Best premium PSU for RTX 4070 Ti

ASUS ROG Strix 850G 850W 80 Plus Gold Modular Power Supply

Wattage

850W

Item dimensions L x W x H (cm)

16 x 8.6 x 18

Weight (kg)

1.8

Pros
  • Fully modular cables
  • Runs quietly
  • All black cables for a uniform design
Cons
  • No RGB lighting

Though you’re paying a premium for the ASUS ROG Strix brand, you get a quality product. Its standout feature are the integrated ROG heatsinks that help keep the PSU at moderate temperatures. This is great for prolonging the lifespan of your other PC components and reducing the overall noise from your system.

It has an 80 Plus Gold rating which is always worth getting if you can afford it. It makes a difference to your electricity bill in the long term too. For those who value a quiet PC during light gaming, this PSU benefits from 0db technology. When the TDP is below 40% of the 135mm fan, your PSU will run virtually silent.

Frequently asked questions

Buying a PSU can be a confusing kerfuffle, least of all buying one for a GPU as powerful and power-hungry as the RTX 4070 Ti. There are a few questions that seem to be the most common so, to make things simpler we’ve answered them here.

Will I need a new PSU for RTX 4000?

The sheer power demands of NVIDIA’s new RTX 4000 series will mean that many will need to upgrade their PSU, in order to power them. That said the power consumption ranges. For example, the RTX 4090 is the most demanding needing 850W at a minimum, with the 4080 needing at least 750W.

Does the RTX 4070 Ti need ATX 3.0?

No, a PSU with ATX 3.0 is not an absolute necessity for the RTX 4070 Ti. However, it is pretty close to being one as it will allow your PSU to power your GPU more cleverly, reducing the risk of a power spike shutting your system down.

Is 850W power supply overkill?

850W is overkill for less-powerful gaming rigs. However, if you have any of the latest graphics cards from NVIDIA or AMD, it is definitely at least worth considering. For the RTX 4090 for example, it’s almost essential.