[SOLVED] Which PSU should I get with my build?

[Edzie]

-GPU MSI Radeon RX 590 8GB
-CPU AMD Ryzen 5 2600 3.4GHz
-RAM HyperX 8GB DDR4 3200Mhz
-MB Gigabyte B450 Eite
-SSD Kingston A400 240GB
-HDD Toshiba P300 1TB
-Case ATX Midi Tower Titan 800 (listing this because it has 4 fans that also need power supply)

I don't want to overspend but I also want to make the right decision. Also, I am going to OC my CPU and GPU so that'll need a bit more power. Right now I'm thinking of getting the Sharkoon WPC750 750W Bronze for about $100.

 

[WildCard999]

PCPartPicker Part List

Power Supply: SeaSonic - FOCUS Plus Gold 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($79.98 @ Newegg)
Total: $79.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-07-03 11:42 EDT-0400

 

[Showgun]

You can use this site:
https://outervision.com/power-supply-calculator

or this:
https://www.bequiet.com/en/psucalculator

to calculate how much wattage you require. If you want to upgrade your system in future, add 100W more to it. Additionally, it's better to get a silver or gold then a bronze PSU. Looking at your system specs 750W seems to be too much in my opinion. Choose a PSU with less W but with silver or gold standard.

 

[geofelt]

PSU capacity calculators can be deadly accurate IF... you know the accurate inputs.
But, we do not know.
What capacity ageing factor for instance.
What our future requirements might be.
Or, is the PSU we are considering of sufficient quality to deliver advertised wattage while in a heated case.

I found this chart to be useful for psu wattage required:
http://www.realhardtechx.com/index_archivos/Page362.htm

I have no problem overprovisioning a PSU a bit. Say 20%.
It will allow for a stronger future graphics card upgrade.
It will run cooler, quieter, and more efficiently in the middle third of it's range.
A PSU will only use the wattage demanded of it, regardless of it's max capability.

I think you are good with 650w, and nothing wrong with 750w.

The second consideration, and the more important one is to buy a quality psu.

A cheap PSU will be made of substandard components. It will not have safety and overload protections.
The danger is if it fails under load, it can destroy anything it is connected to.
It will deliver advertised power only at room temperatures, not at higher temperatures found when installed in a case.
The wattage will be delivered on the 3 and 5v rails, not on the 12v rails where modern parts
like the CPU and Graphics cards need it. What power is delivered may fluctuate and cause instability
issues that are hard to diagnose.
The fan will need to spin up higher to cool it, making it noisy.
A cheap PSU can become very expensive. Do not buy one.

Buy a tier 1 or2 unit from a list such as this:

PSU Tier List [OLD]

Credit to @Starelementpokeand @Energycore for helping out with this long-awaited refresh of the old PSU tier list by Aniallation (who previously went several months without logging in), leaving the old list in need of help. This is simply an update of the list that was flawed in creation by the P...

linustechtips.com

I do not know about Sharkoon;
it certainly is not well known.
I like the Seasonic focus line in 650-750w.
They are compact at 140mm long.
The one wildcard999 linked is excellent with a 10 year warranty.