AMD recommends a minimum 750W PSU for the RX 7800 XT GPU. A higher wattage PSU may be required depending on the rest of your system components. The Radeon RX 7800 XT is rated at 300W, but this can vary depending on the workload.
Aim for an 850W or 1000W PSU for optimal performance and future upgradability.
You’ll want a PSU with enough PCIe power connectors to meet the power requirements of the GPU. The RX 7800 XT requires a 8-pin and 6-pin PCIe power connector.
Make sure the PSU has enough amps on the 12V rail(s) to handle the peak power draw of the GPU. For the RX 7800 XT, you’ll want at least 30A on the 12V rail.
Here are the key power supply requirements for the AMD Radeon RX 7800 XT graphics card:
- Minimum PSU Wattage: 750W
- Recommended PSU Wattage: 850W or higher
- PSU Power Connectors: 1x 8-pin PCIe and 1x 6-pin PCIe
- Minimum 12V Rail Amperage: 30A
- PSU Efficiency: 80 Plus Gold or higher recommended
I’d recommend looking for an 850W or 1000W 80 Plus Gold fully or semi-modular PSU from a reputable brand that meets the power connector and 12V rail requirements for the RX 7800 XT.
Our recommended list of the Best Best PSU For RX 7800 XT
- Seasonic FOCUS GX-850 : Overall Best PSU For RX 7800 XT
- Corsair RM750x : Required PSU For RX 7800 XT
- EVGA SuperNOVA 750 G3 : Best 750W PSU For 7800 XT
- Corsair RM850x : Best 850W PSU For RX 7800 XT
- Thermaltake Toughpower GF3 850W
- ASUS ROG Strix 1000W : Best High End PSU For RX 7800 XT
Know More: Best PSU For Radeon RX 7800 XT –
1. Seasonic FOCUS GX-850 : Overall Best PSU For RX 7800 XT
- 850W 80+ Gold certified
- Fully modular
- Hybrid fan control system
Based on the 7800XT PSU requirements, the Seasonic FOCUS GX-850 is overall the best PSU for RX 7800 XT graphics card. The Seasonic FOCUS GX-850 is an exceptional choice that checks all the boxes.
Offering 850 watts of continuous power output, the FOCUS GX-850 provides more than enough headroom for a high-end system powered by the 250W RX 7800 XT. The 80+ Gold certification ensures up to 92% efficiency, reducing excess heat and wasted energy.
One of the standout features is the semi-passive cooling system. The intelligent 120mm fan will remain off when power draw is under 30% load, creating a silent zero-RPM operation during lighter tasks like web browsing.
Once load increases during gaming sessions, the fan will automatically start spinning to optimize cooling. This hybrid fan control allows near silent operation while ensuring components get enough airflow when needed.
Fully modular cables add to the tidy and minimalist aesthetics that most PC builders desire. Only the cables necessary for your setup need to be plugged in, aiding greatly in cable management efforts to reduce clutter.
When it comes to protection and stability, the FOCUS GX-850 delivers peace of mind. The single +12V rail design outputs rock-solid power to the GPU without any fluctuations.
Top-tier Japanese capacitors have extreme temperature tolerance, while other enhancements like DC-DC switching and tight load regulation create unwavering power delivery perfect for overclocking.
For anyone building a new high-end gaming PC using the Radeon RX 7800 XT, the Seasonic FOCUS GX-850 offers the ideal mix of performance, quietness, and stability that makes it the overall best choice.
2. Corsair RM750x : Required PSU For RX 7800 XT
- 750W 80+ Gold certified
- Fully modular
- Zero RPM fan mode
- Tight voltage regulation and low ripple
The Corsair RM750x is an excellent choice as the best recommended power supply unit for the RX 7800 XT graphics card. Offering 750 watts of continuous power, it meets the minimum requirement to run the power-hungry 7800 XT. But what makes the RM750x stand out is the extremely efficient and stable power delivery.
This PSU boasts an 80+ Gold certification, ensuring up to 92% efficiency even at typical 50% load. By wasting less power, it generates less excess heat and noise compared to less efficient options. The zero RPM fan mode also contributes to silent operation by keeping the 120mm fan switched off entirely for loads under 40%.
To power high-end components like the RX 7800 XT, stable power delivery is critical. The RM750x delivers rock-solid performance thanks to its single +12V rail design, tight voltage regulation, and Japanese 105°C capacitors. Features like Corsair’s Low Ripple Noise design reduce unwanted electrical noise as well.
Fully modular cables add to the RM750x’s appeal for anyone building a clean, minimalist PC setup. Only the necessary cables need to be connected to components, cutting down on clutter. The black flat cables are easy to route and enhance airflow with reduced cable obstruction.
At 750 watts, the RM750x gives you some overclocking headroom and leaves upgrade options open in the future. For the RX 7800 XT, the RM750x hits the sweet spot of wattage, efficiency, modular cables, and ultra-stable power delivery.
3. EVGA SuperNOVA 750 G3 : Best 750W PSU For 7800 XT
- 750W 80+ Gold certified
- Fully modular
- Quiet 140mm fan
- ECO mode for efficiency
The EVGA SuperNova 750 G3 is a suitable power supply for the AMD Radeon RX 7800 XT, as it meets the recommended PSU wattage of 750W. With 750 watts of continuous power delivery, it provides more than enough juice to handle the demanding 7800 XT.
This 80+ Gold certified unit delivers over 90% efficiency, even at typical 50% load levels. This reduces excess waste heat and keeps your electrical bills lower compared to less efficient PSUs. The fully modular design also cuts down on cable clutter for super clean builds.
To power GPUs like the 250W RX 7800 XT, stable power delivery is a must. The SuperNOVA G3 achieves this through a single +12V rail rated for 62.5 amps, tight voltage regulation, and high-quality Japanese capacitors. There’s enough headroom to even overclock your GPU and CPU without worrying about stability.
The 140mm cooling fan features a new hydraulic dynamic bearing design for long life and quiet operation. Thanks to the Eco Mode button, the fan can also stay off entirely under low and medium loads for silent running when you’re not gaming or doing GPU-intensive tasks.
With a robust 10-year warranty backing it, EVGA clearly stands behind the durability and longevity of this PSU. For anyone building a new AMD gaming rig powered by the latest RX 7800 XT, the SuperNOVA 750 G3 is a reliable PSU choice with the ideal wattage capacity and top-tier electrical performance you need.
4. Corsair RM850x : Best 850W PSU For RX 7800 XT
- 850W 80+ Gold certified
- Fully modular
- Zero RPM mode up to 250W
- Compact size
The Corsair RM850x is an excellent choice for powering a high-end gaming PC built around the RX 7800 XT thanks to its 850 watt capacity, efficient operation, and rock-solid electrical performance.
As an expert PC builder, I always look for 80+ Gold certified units that provide at least 90% energy efficiency at typical loads. This reduces heat output and power draw compared to less efficient PSUs.
Additionally, the RM850x utilizes a zero RPM fan mode to remain silent under lighter loads. The 120mm cooling fan only ramps up when needed during intense gaming sessions. Both gamers and PC enthusiasts will appreciate the peace and quiet from the RM850x.
When pairing a flagship GPU like the RX 7800 XT, stable power delivery is essential, and the RM850x delivers. It uses a single +12V rail rated for 70A, high-quality Japanese capacitors rated for 105°C, and other enhancements like Corsair’s Low Ripple Noise design. This translates to rock-solid, consistent power output free of ripple or electrical noise.
The fully modular cabling is also a nice touch, allowing you to only connect the cables necessary for your build. This reduces clutter and improves case airflow. The 10-year warranty provides peace of mind on your PSU investment as well.
As an expert PC builder, I highly recommend the Corsair RM850x 850W PSU for anyone building a new high-end gaming PC using the AMD Radeon RX 7800 XT graphics card. It has the power delivery, efficiency, and reliability to handle this top-tier GPU with ease.
5- Thermaltake Toughpower GF3 850W
- 850W 80+ Gold certified
- True 450W 12VHPWR connector
- Ready for RTX 4000 series
The Thermaltake Toughpower GF A3 850W is a power supply that can also support the AMD Radeon RX 7800 XT graphics card.
The power supply has a 80 Plus Gold certification, which means it has a high efficiency of at least 87% at 20%, 50% and 100% load conditions.
The 850 watt capacity provides plenty of headroom for stable power delivery to the 7800 XT. You can even overclock both the GPU and CPU without worrying about shutdowns or system instability.
I’m also impressed by the 80+ Gold efficiency rating and semi-passive cooling. At typical loads, efficiency reaches over 90% to reduce electrical waste and noise production stays low thanks to the intelligent 140mm fan.
Rounding out the features are full ATX 3.0 and PCIe 5.0 support, 100% Japanese capacitors rated for 105°C, and a lengthy 10 year warranty. For tech enthusiasts aiming to build a future-proof AMD gaming rig, the Thermaltake GF3 850W checks all the boxes for supporting the RX 7800 XT now and high-end GPUs for years to come.
Therefore, if you are looking for a power supply that can handle the AMD Radeon RX 7800 XT, you may consider the Thermaltake Toughpower GF A3 850W as an option.
6- ASUS ROG Strix 1000W : Best High End PSU For RX 7800 XT
- 1000W 80+ Gold certified
- Fully modular
- Axial-tech fan design
- 0dB technology
For builders seeking maximum power and performance from an AMD gaming rig with the RX 7800 XT, the ASUS ROG Strix 1000W Gold stands out as the best 1000W PSU option. This unit provides an abundance of reliable power for even the most demanding systems.
With its 80 Plus Gold certification, the ROG Strix 1000W operates with over 90% efficiency at typical load levels. This results in less waste heat and lower electricity bills compared to less efficient PSUs when gaming or running intensive applications.
The powerful single +12V rail design outputs a whopping 83A to deliver crystal clear and stable power to the GPU, even under heavy loads. Combining this with top-shelf Japanese capacitors and PCB layering techniques leads to extremely tight voltage regulation for safety of your valuable PC components.
The ROG Strix incorporates innovative axial-tech fan design with dual ball bearings and 0dB technology to achieve near silent operation when you don’t need maximum airflow. This allows gaming without any fan noise distraction.
Fully modular cabling ensures you only need to connect the cables required for your build, resulting in tidier builds. And the 10-year warranty offers tremendous long-term value.
For enthusiasts building the ultimate AMD gaming machine powered by the RX 7800 XT, the ASUS ROG Strix 1000W Gold checks every box as the best 1000W PSU money can buy, delivering elite-tier performance, stability, and reliability.
How to Choose the Best PSU For Radeon RX 7800 XT
Wattage – AMD recommends a minimum 750W PSU for the RX 7800 XT. However, an 850W or 1000W PSU provides ideal headroom and future upgrade flexibility. The PSU’s sustained wattage rating is more important than peak.
Efficiency Rating – Look for 80 Plus Gold or higher rated PSUs, which are at least 87% efficient at typical loads. This results in less excess heat and lower electricity costs.
Modularity – Fully modular or semi-modular PSUs allow removal of unused cables for tidier builds. Modular cables are easier to route and improve airflow.
Rail Capacity – The PSU should have a strong single 12V rail with at least 30A capacity to deliver stable power to the GPU’s 250W load.
Cooling – 120mm or 140mm fans with a zero RPM silent mode allow fanless operation during lighter loads. The fan only spins up when needed.
Cables – Ensure the PSU has the required PCIe power cables, including 8-pin and 6-pin connectors for the RX 7800 XT. Sleeved cables are an aesthetic bonus.
Brand Reputation – Stick with highly-rated PSU brands like Corsair, EVGA, Seasonic, etc. for proven quality and reliability.
By considering these factors when shopping for a PSU, you can find the perfect power supply solution to pair with your high-end RX 7800 XT GPU for peak performance. Prioritize wattage capacity, efficiency, and stable power delivery.
Conclusion
Selecting the right power supply is crucial to unlock the full potential of a high-end GPU like the Radeon RX 7800 XT. This powerful 300W graphics card needs robust and stable power delivery to enable smooth gaming and intense creative workloads.
When shopping for the best PSU for the 7800 XT, keep in mind key factors like sufficient wattage overhead, 80 Plus Gold or better efficiency, a strong 12V rail, and modular cabling. Aim for units in the 850-1000W range from reputable brands to allow substantial headroom for overclocking.
Quality internal components like Japanese capacitors and a single +12V rail design are vital for rock-solid stability when gaming. Advanced cooling methods like semi-passive fans also contribute to quieter and reliable operation.
While providing enough power is crucial, don’t merely choose the PSU with the highest wattage. Efficiency, top-tier engineering, and long warranties separate the great PSUs from the mediocre. By picking the right power supply for your 7800 XT today, you can count on years of high-end gaming performance.
In closing, don’t cut corners when purchasing a PSU for a flagship GPU. Invest in a high-quality unit from Corsair, EVGA, Seasonic or other leading brands to fully experience what your Radeon RX 7800 XT is capable of delivering.
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