Suggested PSU for AMD Ryzen 7 5800X and NVIDIA GeForce RTX 3090
You need a power supply with at least 700W
CPU 
GPU Recommended 700W Power Supplies
Recommended 750W Power Supplies
| AMD Ryzen 7 5800X Specifications | |
| Power Draw (TDP) | 105W |
| CPU Cores | 8 |
| CPU Threads | 16 |
| CPU Frequency | 3.8-4.7GHz |
| L3 Cache | 32MB |
| Lithography | 7nm |
| NVIDIA GeForce RTX 3090 Specifications | |
| Power Draw (TDP) | 350W |
| Memory Size | 24GB |
| Memory Type | GDDR6X |
| Lithography | 8nm |
What PSU fits AMD Ryzen 7 5800X and NVIDIA GeForce RTX 3090?
You need a power supply with at least 700W
What are the power supply requirements for AMD Ryzen 7 5800X?
The minimum power supply requirements for AMD Ryzen 7 5800X are a PSU rated with at least 350W
What are the power supply requirements for NVIDIA GeForce RTX 3090?
The minimum power supply requirements for NVIDIA GeForce RTX 3090 are a PSU rated with at least 550W
What are the power supply requirements for AMD Ryzen 7 5800X and NVIDIA GeForce RTX 3090?
The minimum power supply requirements for AMD Ryzen 7 5800X and NVIDIA GeForce RTX 3090 are a PSU rated with at least 700W
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About AMD Ryzen 7 5800X
The processor Ryzen 7 5800X, made by AMD, was released on November of 2020.
The CPU has 8 cores with hyper threading (16 threads). The frequency of the CPU is 3.8GHz and can go up to 4.7GHz.
Questions about AMD Ryzen 7 5800X and NVIDIA GeForce RTX 3090
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Can I reuse my old Corsair CMPSU-750HX for a new build with AMD Ryzen 7 5800X and GeForce RTX 3090?
Green CPU Monkey 30 wrote on 12/02/2022 :
Cutting on the edge of safe, but technically yes.
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