Best PSU for Ryzen Threadripper 9980X & RTX 5070
This build is a high-end workstation and gaming powerhouse, capable of handling demanding tasks like 4K gaming, video editing, and complex simulations with ease.
1000W
700W
70%
Enthusiast
🏆 Recommended Power Supplies
Hand-picked for your 1000W target — sorted by overall value.
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2×6 Connector – Black
Excellent choice, known for reliability, low noise, and full modularity, perfect for a high-end build.
Efficiency80+ Gold
FormATX
CablesFull-Modular
Price$159.99
Rosewill VMG 1000W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1 12V-2×6 Connector, 100% Japanese Electrolytic Capacitor, 120mm FDB Silent Fan – 5 Year Warranty
A solid, feature-rich option with ATX 3.1 and Japanese capacitors, ensuring stability for this powerful system.
Efficiency80+ Gold
FormATX
CablesFull-Modular
Price$95.97
be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for PCIe 5.1 GPUs, semi-Passive 120mm be quiet! Fan, LLC Technology, Single Rail, for Overclocked GPUs
Good efficiency and ATX 3.1 support, but non-modular design might complicate cable management in a premium build.
Efficiency80+ Gold
FormATX
CablesNon-Modular
Price$139.50
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 | CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2×6 Connector – Black | 1000W | 80+ Gold | Full-Modular | $179.99 |
| 2 | Rosewill VMG 1000W 80+ Gold, ATX 3.0 & 3.1 Compatible, Full Modular Low-Noise Power Supply, PCIe 5.1 12V-2×6 Connector, 100% Japanese Electrolytic Capacitor, 120mm FDB Silent Fan – 5 Year Warranty | 1000W | 80+ Gold | Full-Modular | $89.99 |
| 3 | be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for PCIe 5.1 GPUs, semi-Passive 120mm be quiet! Fan, LLC Technology, Single Rail, for Overclocked GPUs | 1000W | 80+ Gold | Non-Modular | $127.40 |
| ⬆️ | 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: 700W
Headroom: 300W (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
Utilize power-saving modes for CPU and GPU.
Ensure proper case airflow for optimal cooling.
Disable unused background applications.
🎯 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 NVIDIA GeForce RTX 5070 — no daisy-chaining.
- Boot-test with side panel open before final assembly.
⚠️ Special Note
Ensure all modular cables are securely connected to both PSU and components before powering on.
🔗 Explore More Builds
See PSU recommendations for other CPU + GPU combinations.