Best PSU for AMD Ryzen 7 9700X and NVIDIA GeForce RTX 5080
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NVIDIA GeForce RTX 5080
Configuration Analysis
System Performance Assessment
This system, featuring a Ryzen 7 9700X and RTX 5080, is capable of exceptional performance. Expect to play all modern games at maximum settings with high refresh rates at 1440p or even 4K resolution. Content creation tasks, such as video editing and 3D rendering, will also be handled with ease and speed.
Recommended Power Supplies
CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2×6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black
Thermaltake GF1 (2024) Fully Modular ATX 750W Power Supply – 80 Plus Gold – Ultra Quiet – Zero RPM, PS-TPD-0750FNFAGU-P
The Thermaltake GF1's 750W and 80+ Gold rating provide reliable, efficient power for your 9700X and RTX 5080, with headroom for future upgrades.
ARESGAME AGV Series 750W Power Supply, 80 Plus Bronze Certified, Semi Modular Power Supply, 5 Year Warranty
The ARESGAME 750W Gold has the wattage and efficiency for your 9700X/RTX 5080, plus its semi-modular design helps cable management.
Comparison Table
| Model | Wattage | Efficiency | Form Factor | Modularity | Price | Best For |
|---|---|---|---|---|---|---|
| CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2×6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black | 750W | 80+ Gold | ATX | Full-Modular | $99.99 | Overall Value |
| Thermaltake GF1 (2024) Fully Modular ATX 750W Power Supply – 80 Plus Gold – Ultra Quiet – Zero RPM, PS-TPD-0750FNFAGU-P | 750W | 80+ Gold | ATX | Full-Modular | $81.99 | Energy Efficiency |
| ARESGAME AGV Series 750W Power Supply, 80 Plus Bronze Certified, Semi Modular Power Supply, 5 Year Warranty | 750W | 80+ Gold | ATX | Semi-Modular | $54.9 | Energy Efficiency |
Why This Wattage?
Power Calculation
The recommended PSU wattage is calculated based on the total power draw of your CPU (AMD Ryzen 7 9700X) and GPU (NVIDIA GeForce RTX 5080), plus approximately 100W for other components like motherboard, memory, and storage devices.
Extra Headroom
We add an additional 30% headroom to ensure optimal efficiency, handle power spikes, and allow for future upgrades. This ensures your system runs stable and your PSU operates in its optimal efficiency range.
Efficiency Standards
We recommend power supplies with 80 Plus certification, which represents higher energy efficiency and more reliable performance. Power supplies are most efficient at 50-60% load, so having adequate headroom is important.
Power Efficiency Tips
Enable AMD's Eco Mode or adjust CPU power limits in BIOS to reduce power consumption during less demanding tasks.
Optimize NVIDIA Control Panel settings for performance or power savings depending on the current workload.
Consider undervolting the RTX 5080 slightly to maintain performance while reducing power draw and heat.
Special Installation Note
Ensure the 12V-2×6 (formerly known as 12VHPWR) cable is fully seated in the RTX 5080 to prevent damage and ensure proper power delivery. Use the native cable from the PSU, and avoid adapters if possible.
Usage Scenarios
Ultra Gaming
Play AAA games at max settings, 4K resolution, and high refresh rates with ray tracing enabled for stunning visuals.
Video Editing
Effortlessly edit and render high-resolution videos (4K/8K) with complex effects and smooth playback, significantly reducing rendering times.
AI Development
Train and run complex AI models, perform machine learning tasks, and develop advanced algorithms with accelerated performance using the powerful GPU.
Installation Tips
Position Properly
Most cases have a dedicated PSU bay at the bottom. Ensure the PSU fan is facing down if your case has bottom ventilation, allowing it to draw cool air from outside.
Cable Management
With modular PSUs, connect only the cables you need. Route cables behind the motherboard tray when possible for better airflow and cleaner appearance.
Proper Connections
Ensure all power connectors are fully seated and locked. The NVIDIA GeForce RTX 5080 will require dedicated PCIe power connectors from the PSU.
Test Before Completing
Before fully closing your case, connect the essential components and test that your system boots correctly with the new power supply.
The RM750e provides ample, stable power for your 9700X/RTX 5080 combo, with headroom and future-proof ATX 3.1/PCIe 5.1 support.