How to Use This Calculator

Step-by-Step Instructions

1. Enter your cpu tdp (w)
2. Enter your intel i5/ryzen 5 (65w)
3. Enter your intel i7/ryzen 7 (105w)
4. Enter your intel i9/ryzen 9 (125w)
5. Enter your i9 14900k (253w)
6. Enter your gpu tdp (w)
7. Enter your rtx 4060 (115w)
8. Enter your rtx 4070 (200w)
9. Enter your rtx 4080 (320w)
10. Enter your rtx 4090 (450w)
11. Enter your rx 7900 xtx (355w)
12. Enter your recommended psu
13. Enter your est total draw
14. Enter your with 25% headroom
15. Enter your suggested
16. Results appear instantly — no button needed

Formula

Frequently Asked Questions

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