The new ATX 3.0 standard adds the new PCIe 5.0 12VHPWR connector that features 12+4 pins instead of the traditional 6 or 8. The new PCIe 5.0 cable can supply 600 Watts of power to the graphics card. Here are some of the best ATX 3.0 PCIe Gen 5 power supply units for the Nvidia RTX 4090 and 4080 graphics cards.
ATX 3.0 is Intel’s new specification standard for existing PSUs. In short, ATX 3.0’s main purpose is to help provide more reliability and better power efficiency and provide graphics cards with up to 600 watts of power. ATX 3.0 is created in response to graphics cards’ increase in performance and the ever-increasing need for power.
Best ATX 3.0 PCIe Gen 5 (12VHPWR) Power Supply Units 2023
The following are some of the best ATX 3.0 PCIe Gen 5 power supply units that you can buy for next-generation graphics cards, such as the RTX 4090 and RTX 4080:
- Gigabyte GP-UD1000GM PG5
- Thermaltake Toughpower GF3
- Silverstone HELA 850R
- MSI MPG A1000G PCIE5
- Corsair RM1000x Shift
- be quiet! Dark Power 13 850W
- MONTECH Titan Gold 1200W
- Corsair HX1000
Gigabyte GP-UD1000GM PG5 1000W PCIe 5.0 80+ Gold Modular PSU
Form Factor: ATX | Capacity: 1000W | Type: Fully Modular | Rating: 80+ Gold
The Gigabyte GP-UD1000GM PG5 is a PCIe 5.0 PSU with a 1000W capacity and 80+ Gold rating. It is fully modular, so you only need to plug in the cables you will use, which makes cable management much easier. A +12V single rail ensures ideal power output and stability.
The 80+ Gold certification ensures 90% efficiency at 50% load. This improves power efficiency and results in lower heat and power waste. The PSU uses high-quality Japanese capacitors, which means increased durability and longevity.
Thermaltake Toughpower GF3
Form Factor: ATX | Capacity: 750-1650W | Type: Fully Modular | Rating: 80+ Gold
The Thermaltake Toughpower GF3 is an ATX 3.0 PCIe Gen5 compatible PSU that comes in a wide range of capacities from 750W up to 1650W. So you will find a variant that meets your needs. This is a fully modular power supply unit so you only need to plug in the cables you will use. This will make cable management so much easier.
The Thermaltake Toughpower GF3 PSU is available in black and white. It features high-quality Japanese capacitors and comes with low-profile flat cables. The PSU also has a smart zero fan mode.
Silverstone HELA 850R Platinum
Form Factor: ATX | Capacity: 850W | Type: Fully Modular | Rating: 80+ Platunum
The Silverstone HELA 850R is an ATX 3.0 820W power supply that supports PCIe Gen 5 and has an 80+ Platinum rating. It has a modular design and comes with flexible black modular cables. The PSU uses Japanese electrolytic capacitors and has a semi-fanless switch function.
MSI MPG A1000G PCIE5
Form Factor: ATX | Capacity: 1000W | Type: Fully Modular | Rating: 80+ Gold
The MSI MPG A1000G PCIE5 is ATX 3.0 and PCIe Gen 5 compatible. It has a single rail design and is 80+ Gold certified. This is a fully modular power supply unit that comes with flat cables. The PSU has plenty of ports for powering your PC components.
Corsair RM1000x Shift
Form Factor: ATX | Capacity: 1000W | Type: Fully Modular | Rating: 80+ Gold
The Corsair RM1000x Shift is a 1000W fully modular 80+ gold-rated power supply unit which is ideal for high-end PCs that feature hardware like the RTX 4080 paired with an Intel Core i7 or i9 CPU. Rather than having the cables plug into the back, the cables go into the side of the Corsair RM1000x Shift which makes cable installation and cable management much easier with the PSU installed inside the case.
Corsair claims up to 90% efficiency which means better power delivery and lower electricity costs. The PSU features a single 140mm fan that has a zero RPM mode, so it stays off unless the system is under load.
be quiet! Dark Power 13 850W
Form Factor: ATX | Capacity: 1000W | Type: Fully Modular | Rating: 80+ Titanium
be quiet! is known for making some of the PC cooling solutions and the Dark Power 13 is a very nice all-black 1000W power supply unit. This is an ATX 3.0, PCIe 5, fully modular PSU that has an 80+ Titanium rating. This is an ideal PSU if you are going for a non-RGB build. The PSU features a frameless Silent Wings fan and has an overclocking button that allows the user to switch between four 12V rails and one massive 12V rail.
MONTECH Titan Gold 1200W
Form Factor: ATX | Capacity: 1200W | Type: Fully Modular | Rating: 80+ Gold
The MONTECH Titan Gold 1200W is a 1200W, 80+ Gold-rated, fully modular power supply unit. It is ATX 3.0 and PCIe 5.0 compatible and is ideal for bleeding edge builds with RTX 4090 and Intel i9 or Ryzen 9 CPUs. It a 135mm with an auto stop button and comes with a 10-year warranty.
Corsair HX1000 1000W Modular 80+ Platinum PSU
Form Factor: ATX | Capacity: 1000W | Type: Fully Modular | Rating: 80+ platinum
While the Corsair HX1000 is not marketed as an ATX 3.0 PCIe Gen 5 PSU, Corsair has confirmed that its power supply units are compatible with the RTX 4000 series of graphics cards. There is also an official CORSAIR 12VHPWR 600W PSU cable available to order from the Corsair store.
The Corsair HX1000 is a fully modular 1000W ATX power supply with an 80+ Platinum rating. The PSU has a 135mm FDB fan with a zero RPM mode to reduce noise. It supports ATX12V v2.4 and EPS 2.92 standards and is backward compatible with ATX12V 2.2, 2.31, and ATX12V 2.01 systems. It also comes with a 10-year warranty.
These are some of the best ATX 3.0 PCIe Gen 5 power supply units you can buy now. If you are interested in upgrading your build, then you can check out our recommended Z790 and X670E motherboards.