Suggested PSU for AMD Ryzen 9 3900X and NVIDIA L40G
You need a power supply with at least 650W
CPU 
GPU Recommended 650W Power Supplies
Recommended 700W Power Supplies
| AMD Ryzen 9 3900X Specifications2 | |
| Power Draw (TDP) | 125W |
| CPU Cores | 12 |
| CPU Threads | 24 |
| CPU Frequency | 3.8-4.6GHz |
| L3 Cache | 64MB |
| Lithography | 7nm |
| NVIDIA L40G Specifications | |
| Power Draw (TDP) | 300W |
| Memory Size | 24GB |
| Memory Type | GDDR6 |
| Lithography | 4nm |
What PSU fits AMD Ryzen 9 3900X and NVIDIA L40G?
You need a power supply with at least 650W
What are the power supply requirements for AMD Ryzen 9 3900X?
The minimum power supply requirements for AMD Ryzen 9 3900X are a PSU rated with at least 350W
What are the power supply requirements for NVIDIA L40G?
The minimum power supply requirements for NVIDIA L40G are a PSU rated with at least 500W
What are the power supply requirements for AMD Ryzen 9 3900X and NVIDIA L40G?
The minimum power supply requirements for AMD Ryzen 9 3900X and NVIDIA L40G are a PSU rated with at least 650W
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About AMD Ryzen 9 3900X
The processor Ryzen 9 3900X, made by AMD, was released on July of 2019.
The CPU has 12 cores with hyper threading (24 threads). The frequency of the CPU is 3.8GHz and can go up to 4.6GHz.