I'm trying to figure out the best power supply wattage for my build featuring a Ryzen 5 5600X and a GeForce RTX 3070 Ti. I did some research and found that:
- PSU wattage calculators suggest around 450W for my components (which include a CPU, GPU, a micro ATX motherboard, a single 16GB DDR4 stick, and a 500GB SSD).
- Different manufacturers, like Asus, recommend 750W for the 3070 Ti, while others say 650W would suffice.
- Generally, I've seen advice that 650W is adequate, but many suggest going for 750W just to be safe. I'm curious about what that 'extra safe' factor entails—is it mainly for future-proofing?
On a budget, I can grab a MSI MAG 650BN (650W) for about $49, while the MAG 750BN (750W) is around $64. Both are 80+ Bronze rated and C tier according to the latest PSU Tier list. I understand the importance of investing in a quality PSU; what do you think of my options? Is 80+ Bronze at 650W sufficient for my build? Thanks!
3 Answers
You could go to pcpartpicker and enter your components. It’ll give you a more accurate estimate of the wattage you need. Also, remember to think about any future upgrades when deciding on the PSU, as you might want flexibility down the road.
I suggest spending the extra ten bucks for more wattage and maybe a Gold-rated PSU. Having a little more power can be beneficial as you look to upgrade your components in the future.
You'll probably be fine with a 650W PSU for now, but bear in mind that if you decide to upgrade your GPU in the future, you might need a stronger power supply. I made the move to an EVGA G2 850W back in 2015, which was seen as overkill at the time, but I never regretted the investment. Good PSUs often come with warranties of 7-10 years, so it can be a smart choice to invest a little more up front and not have to replace it later.
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