Will my PSU be enough? RTX 3080, Ryzen 5000

[xbios]

I know, nobody can see in the future and nobody knows jet how much power a ryzen 5000 cpu will need.

 

So I just tried different psu calculator and chose a Ryzen 9 3900X as cpu. Just to have some "high" amount of power needed.

The reason why I post this here is, for the following setup, the be quiet calculator says I need at least 900 watts or so. Every other calculator around 500-600.

 

Whats the reason? Who is not accurate? Does be quiet just want to sell bigger psus?

 

 

The setup I tested and I kind of want to use in the future when every of these parts are released and available ( looking at nvidia)

 

• CPU: Ryzen 5000 with similar specs/ class to a Ryzen 7 3700X or 3800X (tested with Ryzen 9 3900X just to be safe)
• GPU: NVIDIA RTX 3080
• Storage: 2x NVME SSD (1x pcie 4), 2x Sata SSD, 1x normal WD Blue 3,5" 1TB
• Cooling: 3x 140mm fans + NZXT Kraken X72 (1 Pump with 3x 120mm fans)
• RAM: 4x 8GB (32GB in total)
• Mainboard: Asus Rog Strix X570-E
• Some RGB: Phanteks Digital RGB Neon Kit

 

 

Currently I run a 750W psu, but I'm not really sure if this is enough or if I need more. 

 

If you have any ideas or a quite similar builds, I would be interested in what psu you use and what I need.

 

 

I really don't want to spend this extra money on a new psu thats just around 1 year old...

 

 

Thank you very much.

[Mateyyy]

What 750W PSU is it that you're using?

[LIGISTX]

A good 750 is fine, a poor 750 is not fine. We need to know what specific PSU you have.

[xbios]

1 minute ago, Mateyyy said:

What 750W PSU is it that you're using?

Currently I got a 750W be quiet Straight Power 11

[Mateyyy]

Just now, xbios said:

Currently I got a 750W be quiet Straight Power 11

Yeah, it'll be plenty*. No need to worry.

 

* unless Zen 3 pulls more power than Intel's Comet Lake, but that's pretty unlikely to say the least