Will 850W be enough

[Seblov]

Hi!

 

First post and here we go.

 

So for a couple of months now, I've basically just been waiting for the new nVidia cards and AMD zen 3 chips so i can build my new rig. 

I will say I'm just assuming the TDP on the new Zen 3 chips will me fairly similar to Zen 2.

 

In my existing rig i have a Corsair RM850 (yellow label).

However i have become a monitor fiend and am in need of a secondary gpu to be able to use 5 monitor + my VIVE.

 

My idea is to add a GTX 1050Ti ITX version that only uses power from the PCI-e (75w Max).

 

I have looked at "How many watts do I need? 2.0" But i just want to be sure in case i need to buy a new PSU.

 

 

TLDR; Will a 850W be enough to power 2 GPU's and a high end AMD zen 3 chip?

[Avocheeseado]

Can you list all your specs?

[nick name]

Hello and welcome.

 

The 750W PSU recommendation from Nvidia is based off the power draw of the 10900k.  I'd imagine that you're gonna be fine with 850W and a Ryzen CPU.  

 

Heck, I'm gonna try my 650W before I spring for a larger capacity PSU.  

[cm992]

850W should be fine. A system with a Ryzen 9 3950X and two GTX 1050 Ti's should only need around 500W total system power. Use this calculator

[Seblov]

37 minutes ago, Avocheeseado said:

Can you list all your specs?

Current:

i75820k @ 4.5ghz

GTX 980Ti slightly overclocked

4 x SSD's

1 x  M.2 NVME

Some Corsair 240 AIO

16 GB 2666 ram

RM850

 

Future:

Upcoming presumably Ryzen 9

RTX 3090

GTX 1050ti

4 x SSD's

1 x M.2 nvme (pci-e gen4)

A 360 AiO (haven't decided on which yet)

32 Gb G.skill 3600

RM850 (assuiming it will do the trick for this build)

[Seblov]

34 minutes ago, cpm9 said:

850W should be fine. A system with a Ryzen 9 3950X and two GTX 1050 Ti's should only need around 500W total system power. Use this calculator

I used that calculator, but when i enter a RTX 3090 + the 1050ti ut suggest 1200W psu.

So after doing some light research (mostly watching gamers nexus) i found out that 1200W can't be right.

 

[Avocheeseado]

50 minutes ago, Seblov said:

Current:

i75820k @ 4.5ghz

GTX 980Ti slightly overclocked

4 x SSD's

1 x  M.2 NVME

Some Corsair 240 AIO

16 GB 2666 ram

RM850

 

Future:

Upcoming presumably Ryzen 9

RTX 3090

GTX 1050ti

4 x SSD's

1 x M.2 nvme (pci-e gen4)

A 360 AiO (haven't decided on which yet)

32 Gb G.skill 3600

RM850 (assuiming it will do the trick for this build)

850w should be fine

[Seblov]

Thanks everyone for your quick replies!