[SOLVED] What should I buy? 650w bronze or 750w gold?

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ardayurekli

ardayurekli

Jan 23, 2021
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Hi there. I am going to buy a pc with a ryzen 7 5800x, rtx 3070 3x, 4x8 ddr4 ram, 500 gig ssd, 2x 7200rpm hard drive, a b-550 atx motherboard and a corsair icue 4000x case. But for the psu I have 2 choices. A 750w gold corsair and a 650w bronze corsair. If I buy the 750w gold I won't be able to buy a 5800x. I'll have to buy a 5600x. But I want to buy a 5800x and I don't know if a 650w bronze psu is enough. I need a little help. What should I do?
 
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ardayurekli said:
Hi there. I am going to buy a pc with a ryzen 7 5800x, rtx 3070 3x, 4x8 ddr4 ram, 500 gig ssd, 2x 7200rpm hard drive, a b-550 atx motherboard and a corsair icue 4000x case. But for the psu I have 2 choices. A 750w gold corsair and a 650w bronze corsair. If I buy the 750w gold I won't be able to buy a 5800x. I'll have to buy a 5600x. But I want to buy a 5800x and I don't know if a 650w bronze psu is enough. I need a little help. What should I do?
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The power supply isn't the place to save money on a build, especially not when you will be running an expensive graphics card. Better to save money on SSD / HDD storage as these can easily be added later.
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ardayurekli said:
Hi there. I am going to buy a pc with a ryzen 7 5800x, rtx 3070 3x, 4x8 ddr4 ram, 500 gig ssd, 2x 7200rpm hard drive, a b-550 atx motherboard and a corsair icue 4000x case. But for the psu I have 2 choices. A 750w gold corsair and a 650w bronze corsair. If I buy the 750w gold I won't be able to buy a 5800x. I'll have to buy a 5600x. But I want to buy a 5800x and I don't know if a 650w bronze psu is enough. I need a little help. What should I do?
Click to expand...
The power supply isn't the place to save money on a build, especially not when you will be running an expensive graphics card. Better to save money on SSD / HDD storage as these can easily be added later.
 
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refillable said:
People overestimate PC power loads often. Heck, I would run that config with a quality 450 W PSU. That config will barely exceed 400W.
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Well as long as you are sure. I personally had issues in the past with a high transient load from a Vega 56 card which would power off during gameplay. This was using a 660W Platinium power supply.

Graphics cards don't always draw their average TDP all the time and power spikes can cause problems.
 
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Flayed said:
Well as long as you are sure. I personally had issues in the past with a high transient load from a Vega 56 card which would power off during gameplay. This was using a 660W Platinium power supply.

Graphics cards don't always draw their average TDP all the time and power spikes can cause problems.
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That's not necessarily a wattage issue, it's something else. It's either that the over current protection is set too sensitively (e.g. Seasonic Focus/Prime pre. 2018), or that there is not enough power in the rail(s) that supply power to the GPU. PSU manufacturers should already consider high power spikes from any GPUs by tweaking the supervisor IC. As in your case, changing it with a random 750 W PSU won't necessaarily solve your issue.
 
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Flayed said:
I don't think that is enough power for a 3070
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My pre-overclocked 3070 Gaming X Trio draws 240W peak, 210-220W most of the time, while my 3900X draws 100W in gaming. That's around 320-340W. I'd say it's fine. The real TDP monsters here are the 3080 and 3090, not the 3070 and 3060 Ti.
 
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