Best PSU for AMD Ryzen Threadripper PRO 7985WX and NVIDIA GeForce RTX 5080
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NVIDIA GeForce RTX 5080
Configuration Analysis
System Performance Assessment
This system represents a top-tier enthusiast build, capable of handling any workload. The Ryzen Threadripper PRO 7985WX and RTX 5080 provide exceptional performance in demanding tasks such as professional content creation (video editing, 3D rendering), scientific simulations, and ultra-high resolution gaming at maximum settings. Expect smooth performance across all applications.
Recommended Power Supplies
NZXT C1200 Gold ATX 3.1 – Fully Modular Low-Noise PC Gaming Power Supply – 1200 Watts – 80 Plus Gold – 12V-2×6 Connector – Zero Fan Mode – 100% Japanese Capacitors – Black
ASUS TUF Gaming 1200W Gold (1200 Watt, ATX 3.0 Compatible Fully Modular Power Supply, 80+ Gold Certified, Military-Grade Components, Dual Ball Bearing, Axial-tech Fan, PCB Coating, 10 Year Warranty)
The ASUS TUF 1200W Gold provides ample, reliable power for your Threadripper and RTX 5080, with ATX 3.0 for future-proofed stability.
ROG Thor 1200W Platinum II (1200 Watt, Fully Modular Power Supply, 80+ Platinum, Lambda A++ Certified, ROG heatsinks, 135mm PWM Fan, 0dB Mode, OLED Panel, Sleeved Cables, Aura Sync, 10 Year Warranty)
The ROG Thor 1200W Platinum II offers ample headroom and platinum efficiency to power your Threadripper/RTX 5080 beast, ensuring stable overclocking and longevity.
Comparison Table
| Model | Wattage | Efficiency | Form Factor | Modularity | Price | Best For |
|---|---|---|---|---|---|---|
| NZXT C1200 Gold ATX 3.1 – Fully Modular Low-Noise PC Gaming Power Supply – 1200 Watts – 80 Plus Gold – 12V-2×6 Connector – Zero Fan Mode – 100% Japanese Capacitors – Black | 1200W | 80+ Gold | ATX | Full-Modular | $192.99 | Overall Value |
| ASUS TUF Gaming 1200W Gold (1200 Watt, ATX 3.0 Compatible Fully Modular Power Supply, 80+ Gold Certified, Military-Grade Components, Dual Ball Bearing, Axial-tech Fan, PCB Coating, 10 Year Warranty) | 1200W | 80+ Gold | ATX | Full-Modular | $219.99 | Energy Efficiency |
| ROG Thor 1200W Platinum II (1200 Watt, Fully Modular Power Supply, 80+ Platinum, Lambda A++ Certified, ROG heatsinks, 135mm PWM Fan, 0dB Mode, OLED Panel, Sleeved Cables, Aura Sync, 10 Year Warranty) | 1200W | 80+ Platinum | ATX | Full-Modular | $327.19 | Clean Cable Management |
Why This Wattage?
Power Calculation
The recommended PSU wattage is calculated based on the total power draw of your CPU (AMD Ryzen Threadripper PRO 7985WX) 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
Utilize the PSU's 'Zero RPM' or '0dB' mode for silent operation during light workloads, reducing unnecessary fan activity.
Monitor power consumption and consider undervolting the GPU slightly to reduce power draw without significant performance loss.
Enable CPU power saving features in the BIOS to reduce idle power consumption and heat generation when the system is not under heavy load.
Special Installation Note
Due to the RTX 5080's high power demand, ensure you use dedicated 12VHPWR cables directly from the PSU to the GPU, avoiding adapters or daisy-chaining, to provide stable power delivery.
Usage Scenarios
8K Filmmaking
Effortlessly handle 8K video editing, color grading, and visual effects with real-time playback and rapid rendering speeds.
Scientific Simulation
Run complex simulations for scientific research, such as molecular dynamics or fluid dynamics, with massive datasets and intricate calculations.
Extreme Gaming
Experience ultra-high frame rates at 4K or even 8K resolution in demanding games with maximum graphics settings enabled.
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 NZXT C1200 Gold offers ample headroom for your Threadripper/RTX 5080, with the 12V-2×6 and Japanese caps ensuring stable power delivery.