Best PSU for Ryzen Threadripper PRO 9945WX & RX 7700 XT
Your AMD Ryzen Threadripper PRO 9945WX and AMD Radeon RX 7700 XT combination delivers exceptional performance for demanding workloads. This enthusiast-grade system can handle 4K gaming at high framerates, intensive content creation, and professional workloads simultaneously.
1000W
695W
70%
Enthusiast
🏆 Recommended Power Supplies
Hand-picked for your 1000W target — sorted by overall value.
msi MAG A1000GL PCIE5, Fully Modular Compact Gaming 1000W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2×6 Cable, 10 Year Warranty
Excellent efficiency rating, ideal for extended use with this AMD Ryzen Threadripper PRO 9945WX and AMD Radeon RX 7700 XT configuration.
Efficiency80+ Gold
FormATX
CablesFull-Modular
Price$134.99
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply u2013 Low-Noise, Cybenetics Gold Efficiency, Native 12V-2×6 Connector u2013 Black
Excellent efficiency rating, ideal for extended use with this AMD Ryzen Threadripper PRO 9945WX and AMD Radeon RX 7700 XT configuration.
Efficiency80+ Gold
FormATX
CablesFull-Modular
Price$179.99
CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply u2013 12V-2×6 Cable Included, Cybenetics Gold Efficiency, 105u00b0C-Rated Capacitors, Modern Standby Mode u2013 Black
Excellent efficiency rating, ideal for extended use with this AMD Ryzen Threadripper PRO 9945WX and AMD Radeon RX 7700 XT configuration.
Efficiency80+ Gold
FormATX
CablesFull-Modular
Price$156.55
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)
Want extra headroom for future GPU upgrades or overclocking? This 1200W unit gives you peace of mind.
Efficiency80+ Gold
FormATX
CablesFull-Modular
Price$204.99
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📊 Quick Comparison
See the key differences at a glance.
| # | Model | Wattage | Efficiency | Modular | Price |
|---|---|---|---|---|---|
| 1 | msi MAG A1000GL PCIE5, Fully Modular Compact Gaming 1000W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2×6 Cable, 10 Year Warranty | 1000W | 80+ Gold | Full-Modular | $134.99 |
| 2 | CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply u2013 Low-Noise, Cybenetics Gold Efficiency, Native 12V-2×6 Connector u2013 Black | 1000W | 80+ Gold | Full-Modular | $209.93 |
| 3 | CORSAIR RM1000e ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply u2013 12V-2×6 Cable Included, Cybenetics Gold Efficiency, 105u00b0C-Rated Capacitors, Modern Standby Mode u2013 Black | 1000W | 80+ Gold | Full-Modular | $162.11 |
| ⬆️ | 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) Upgrade | 1200W | 80+ Gold | Full-Modular | $204.99 |
🔌 Power Budget
Your system uses 70% of the recommended PSU output — well within the efficient operating range.
1000W (Recommended)
System draw: 695W
Headroom: 305W (30%)
💡 Why 1000W?
Power Calculation
CPU + GPU draw, plus ~100W for motherboard, RAM, fans, and storage.
30% Headroom
Extra capacity absorbs transient power spikes, keeps efficiency in the sweet spot, and leaves room for future upgrades.
80 Plus Efficiency
We only recommend certified PSUs. Higher ratings mean less wasted energy, lower heat, and quieter fans.
🌿 Power Efficiency Tips
Enable Windows/OS power saving features when not gaming to reduce power consumption and heat output.
Consider investing in a high-quality UPS to protect your high-end components from power surges and outages.
Monitor component temperatures and adjust fan curves for optimal balance between cooling performance and noise.
🎯 What This Build Can Do
Gaming
Suitable for modern games with good performance based on your system configuration.
Productivity
Great for office work, multitasking, and everyday computing tasks.
Content Creation
Can handle basic video editing and content creation workflows.
🔧 Installation Guide
Quick Checklist
- Mount the PSU with its fan aligned to your case airflow.
- Only connect cables you actually need (modular PSUs).
- Use dedicated PCIe power cables for AMD Radeon RX 7700 XT — no daisy-chaining.
- Boot-test with side panel open before final assembly.
⚠️ Special Note
For your high-wattage PSU, ensure your case has good bottom ventilation. Some 1000W+ PSUs are longer than standard units, so verify case compatibility before purchasing.
🔗 Explore More Builds
See PSU recommendations for other CPU + GPU combinations.