Best Budget ATX 3.0 PSU with 12VHPWR Connector in 2024

With the increasing power requirements of the latest high-end graphics cards, choosing the right supply is very crucial if you want the best performance and want to ensure the safety of your graphics card, power supply unit, and other internal components of your PC. Modern-day high-end graphics cards have become faster and also their power consumption has increased quite significantly. In addition to the increased power consumption, the latest high-end graphics cards may consume power beyond their rated power for a very short amount of time. These occasional power spikes can cause a heavy load on the PSU; if the PSU can’t handle these power surges, it can damage the graphics card or the PSU can get burnt or damaged.

The high-end graphics cards in the Nvidia 40 series come with the new power connector, the 12VHPWR 16-pin connector. The connector is rated to handle power to up to 600W and needs three 8-pin PCIe connectors for the 12VHPWR 16-pin adapter cable to work for PSUs without a native 12VHPWR 16-pin connector. To handle these power requirements, ATX 3.0 specifications were released by Intel for PSU manufacturers. The ATX 3.0 specifications introduce some important changes and additions to cater to the demands of new-age graphics cards with higher power requirements and with a 12VHPWR 16-pin connector.

ATX 3.0 Power Supply Specifications Key Additions

12VHPWR connector (for power supplies greater than 450W) – All ATX 3.0 power supplies greater than 450W must include a 12VHWPR 16-pin connector and cable for modern-day graphics cards. A single 12VHPWR connector or cable should be able to supply power to up to a maximum of 600W.

2x Total Power Excursion – The ATX 3.0 power supply with a 12VHPWR connector should support peak power of 200% of its total rated power for a very short amount of time (100 microseconds in this case).

3x GPU Power Excursion – The ATX 3.0 PSU can support 3x GPU power excursion which means they can handle power spikes three times the rated power assigned for the GPU.

Note: The 12VHPWR 16-pin connector is also known as the 16-pin PCIe 5.0 connector.

Do you need an ATX 3.0 PSU?

Well, it is not compulsory when you have an older graphics card or a graphics card that is not too power-hungry. However, if you are thinking of buying a high-end graphics card with higher power requirements and having a new 12VHPWR 16-pin connector then getting an ATX 3.0 power supply will benefit you and will have peace of mind because you are not worried about the abnormal power spikes or surges that can occur with modern graphics cards that can result into damage to the card or power supply.

Most of the PSUs available in the market are of ATX 2.1, ATX 2.52, or ATX 2.53 specifications and the ones that support ATX 3.0 specifications are on the expensive side. However, there are some high-quality ATX 3.0 PSUs available that are quite affordable. Below are such ATX 3.0 Power Supply Units that offer great value for the money.

Note: All the below-mentioned ATX 3.0 PSUs are of 850W capacity and are Fully Modular. When it comes to higher wattage power supply, 850 watts is seen as a sweet spot between price and wattage. Also, the most powerful and power-hungry graphics card right now which is the GeForce RTX 4090 requires a minimum of 850W or higher wattage power supply. Having said that, if you require even higher wattage PSU then higher wattage models (1000W or more) are also available for the below-mentioned power supplies.

Best Value ATX 3.0 PCIe 5.0 Power Supplies

Below are the best budget ATX 3.0 power supplies for the graphics cards with a 12VHPWR connector.

bequiet! Pure Power 12 M 850W

[Dual +12V Rails, Very Silent Operation, Great Performance, No Coil Whine]

One of the best value ATX 3.0 power supplies you can get for your high-end gaming PC or workstation. bequiet! Pure Power 12 M 850W is a fully modular ATX 3.0 PSU and comes with 80 Plus Gold Certification with up to 93.2% efficiency. The PSU has very good build quality, offers great performance, is very silent, and looks very modern. The PSU comes with dual +12V Rails, 12V1 and 12V2 having 40A and 36A on them respectively. However, the combined current capacity on the 12V Rail is 70.9A. For graphics cards, the power supply offers four 8-pin (6+2) connectors and a 12VHPWR connector for PCIe 5.0 graphics cards. The 12VHPWR connector of this PSU is rated for 600W of power.

For cooling, the PSU uses a 120mm fan which is very quiet in operation, and its speed is temperature-controlled. The fan comes with Airflow optimized fan blades for reducing turbulence and noise and to increase cooling performance. The PSU does not have any Coil Whine which makes it even more silent. The PSU features LLC technology that delivers rock-solid stability under load and best-in-class voltage regulation and efficiency. The only thing that some may complain about this PSU is that it does not come with sleeved/braided modular cables. However, this can be beneficial because sleeved cables compromise flexibility for extra protection. The power supply carries a 10-year warranty and is also available in 1000W and 1200W higher-wattage models.

bequiet! Pure Power 12 M 850W Specifications
Wattage	850W
12V Rail Current	70.9A Total, 12V1 + 12V2 (40A + 36A), Dual Rails
Fan Size	120mm
80 Plus Certification	Gold
Modular	Fully Modular
PCI-E Connectors	4 x 8-pin (6+2), 1 x 12VHPWR 16-pin (PCIe 5.0)
Features	Dual +12V Rail Design, Silent Temperature Controlled Fan, LLC Technology for advanced stability and voltage regulation, Protections (OCP, OVP, UVP, SCP, OTP)

Buy bequiet! Pure Power 12 M 850W PSU

Thermaltake Toughpower GF A3 Gold 850W

[Semi-passive Cooling, Low Profile Flat Cables, Compact, Braided 16-pin PCIe 5.0 Cable, Very Good Performance]

Another very good ATX 3.0 PSU in the affordable segment from a reputed manufacturer. Thermaltake Toughpower GF A3 Gold 850W is a full modular ATX 3.0 power supply having 80 Plus Gold certification. The power supply uses a powerful single +12V Rail having 70.8A current. For graphics cards, the power supply comes with four 8-pin (6+2) PCIe connectors and a PCIe 5.0 12VHPWR 16-pin connector for modern-day graphics cards. The 12VHPWR connector of this PSU can deliver up to 450W of power. The PSU uses a 120mm fluid dynamic bearing fan for cooling that has a semi-passive cooling mode of operation. The fan does not spin until the PSU load exceeds 30% of its maximum capacity. The fan is also very quiet and does a good job of keeping the PSU internal components cool under heavy loads. The power supply does have some coil whine at higher loads that may annoy some users. Size-wise, the PSU is a little smaller or more compact than the typical ATX 3.0 power supplies available in the market.

The power supply comes with low-profile flat modular cables for tangle-free operation and ensuring better cable management. However, only the 12VHPWR 16-pin cable is nylon braided for protection from cuts and sharp objects. The PSU comes with all the necessary protections including OCP (Over Current Protection), OVP (Over Voltage Protection), UVP (Under Voltage Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), OTP (Over Temperature Protection). Also, the PSU uses LLC technology for high stability and enhanced voltage regulation.

Thermaltake Toughpower GF A3 Gold 850W
Wattage	850W
12V Rail Current	70.8A (Single)
Fan Size	120mm
80 Plus Certification	Gold
Modular	Fully Modular
PCI-E Connectors	4 x 8-pin (6+2), 1 x 12VHPWR 16-pin (PCIe 5.0)
Features	Semi-passive Cooling, Low Profile Cables, (OCP, OVP, UVP, OPP, SCP, OTP) Protections, Nylon Braided 16-pin PCIe 5.0 cable, High-Quality Japanese Main Electrolytic Capacitor, LLC Technology, Compact

Buy Thermaltake Toughpower GF A3 Gold 850W

MSI MAG A850GL PCIE5 Power Supply

[Yellow Colored 12VHPWR Cable Connector, Relatively Compact, Flat Cables, Braided 16-pin PCIe 5.0 Cable, Very Good Performance]

MSI is primarily known for its high-quality motherboards and graphics cards but it does make other PC components too including PC power supplies. Here we have MSI MAG A850GL PCIE5, a very good fully modular ATX 3.0 850W power supply that is on the affordable side. The power supply is relatively compact and can fit in almost all ATX PC Cases. The PSU comes with a strong single +12V rail that has a 70.5A current on it. For graphics cards, the power supply comes with four 8-pin (6+2) PCIe connectors and a single 12VHPWR connector. The 16-pin 12VHPWR connector is rated for 600W maximum power for modern-day PCIe Gen5 graphics cards. The 16-pin 12VHPWR cable connector in this PSU is yellow colored for easy identification and it also helps in checking whether you have inserted the connector fully into the 16-pin 12VHPWR port or not, both at the graphics card and PSU end.

The PSU comes with low-profile flat cables and only the 16-pin 12VHPWR connector cable is braided. The power supply carries 80 Plus Gold certification for higher energy efficiency. The cooling on the PSU is done by a quiet 120mm fan having fluid dynamic bearing (FDB). The power supply is equipped with industrial-level protections that include OVP, OCP, OPP, OTP, SCP, and UVP. Also, the PSU employs LC Full Bridge Topology with DC-DC module design for higher stability and voltage regulation.     

MSI MAG A850GL PCIE5 Specifications
Wattage	850W
12V Rail Current	70.5A (Single)
Fan Size	120mm
80 Plus Certification	Gold
Modular	Fully Modular
PCI-E Connectors	4 x 8-pin (6+2), 1 x 12VHPWR 16-pin (PCIe 5.0)
Features	LLC Full Bridge Topology with DC-DC module design, Protection Mechanisms (OVP, OCP, OPP, OTP, SCP, UVP), Modular Flat Cables, Compact

Buy MSI MAG A850GL PCIE5 Power Supply

Segotep GM850W Power Supply

[Very Competitive Pricing, Good Performance, Quiet]

An unheard brand for most users but this ATX 3.0 PSU is very reliable, durable, affordable, and offers very good performance. Segotep is a division of Colorful, one of the biggest Nvidia Graphics Card AIB partners for the Chinese and Southeast Asian markets. Colorful is quite well known when it comes to graphics cards and their other products including motherboard, SSD, RAM, and Laptop are also of good quality. Segotep is a sub-brand of Colorful that makes Power Supplies, Air and Liquid CPU Coolers, Computer Cases, and other PC accessories. Here from Segotep, we have Segotep GM850W PSU which is fully modular and 80 Plus Gold certified ATX 3.0 power supply. It comes with a single +12V Rail having a 70A current on it. For graphics cards, the power supply comes with two 8-pin (6+2) PCIe connectors and one 12VHPWR PCIe 5.0 connector. The 12VHPWR connector is rated for a maximum power of 600W which is enough for the most power-hungry graphics cards today.

The power supply employs a single 120mm fan for cooling. The fan uses FDB (Fluid Dynamic Bearing) and is pretty silent in operation. The modular are flat and none of them are sleeved. The PSU has all the protection mechanisms including OVP, OCP, OPP, SPD, OTP, UVP, and SCP, and uses Full Bridge LLC DC-DC Technology. Overall, it is one of the best budget ATX 3.0 power supplies and is better than budget PSUs from brands like Apevia, LC Power, etc.

Segotep GM850W Power Supply Specifications
Wattage	850W
12V Rail Current	70A (Single)
Fan Size	120mm
80 Plus Certification	Gold
Modular	Full Modular
PCI-E Connectors	2 x 8-pin (6+2), 1 x 12VHPWR 16-pin (PCIe 5.0)
Features	Full Bridge LLC DC-DC Technology, Protections (OVP, OCP, OPP, SPD, OTP, UVP, SCP), 100% Japanese 105°C Capacitor

Buy Segotep GM850W Power Supply

Other good value ATX 3.0 PSUs

Some other good value ATX 3.0 power supplies from reputed brands.

• EVGA SuperNOVA 850G FTW ATX3.0 & PCIE 5 PSU
• FSP Hydro G PRO 850W Power Supply

See also:

• ATX 3.0 vs ATX 3.1 PSU Key Differences for Graphics Cards
• ATX 3.1 Power Supplies with 12V-2×6 Connectors [PCIe 5.1 Ready]
• What PSU Should I Get for My PC? [Detailed Guide]

Need Help?

If you need any help regarding ATX 3.0 power supplies then you can ask me your queries in the comment section below.