Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

850W PSU enough for an 3090 + 1070 GPUS ?

Go to solution Solved by ColdFusion04,

Ryzen 9 5950x = 105W

RTX 3090 = 350W, up to 535W peak (from techspot.com)

GTX 1070 = 145W, up to 352W peak (from techspot.com)

SATA HDD = up to 16W

3 SSD NVMe = up to 12W (PCIE4)

 

So imho 850W can become a fairly tight fit, under full load from all components your system would draw 628W (1020W peak).

If you remove the GTX 1070, 850W is enough.

Hi i would like to know if an 850w corsair PSU could handle 

one rtx3090 + one gtx1070 + Ryzen 5950x + 1 sata hdd + 3ssd nvme ?

 

i planing to buy this rtx 3090 and i´m worry about the psu 

and i would like to have both gpus in the same pc

 

thanks for your advice

Link to comment
Share on other sites

Link to post
Share on other sites

I wouldn't risk it myself. At least 1200w to cover transient spikes (big jumps in power demands). This is a guesstimate though.

Link to comment
Share on other sites

Link to post
Share on other sites

7 minutes ago, LTTFan16538228 said:

With your config, it seems your 850W PSU is plenty. But why do you want the GTX 1070 in the PC? 

Disagree, you're not taking into account transients.  Fairly sure I've seen some people with a 3080 alone causing an 850W to power off/reboot.

Router:  Intel Celeron N5105 (pfSense) WiFi: Zyxel NWA210AX (1.44Gbit peak at 160Mhz 2x2 MIMO, ~900Mbit at 80Mhz)

Switches: Netgear MS510TXUP, Netgear MS510TXPP, Netgear GS110EMX
ISPs: Zen Full Fibre 900 (~915Mbit) + Three 5G (~500Mbit average)

Link to comment
Share on other sites

Link to post
Share on other sites

Ryzen 9 5950x = 105W

RTX 3090 = 350W, up to 535W peak (from techspot.com)

GTX 1070 = 145W, up to 352W peak (from techspot.com)

SATA HDD = up to 16W

3 SSD NVMe = up to 12W (PCIE4)

 

So imho 850W can become a fairly tight fit, under full load from all components your system would draw 628W (1020W peak).

If you remove the GTX 1070, 850W is enough.

Link to comment
Share on other sites

Link to post
Share on other sites

thanks a lot for your explainatios

very clarifying 

 

Link to comment
Share on other sites

Link to post
Share on other sites

17 minutes ago, LTTFan16538228 said:

With your config, it seems your 850W PSU is plenty. But why do you want the GTX 1070 in the PC? 

because it helps to have multi gpus rendering or decharge the 3090 while you can use the 1070 for others soft and keep the 3090 only form 3d rendering

Link to comment
Share on other sites

Link to post
Share on other sites

10 hours ago, em_lab said:

because it helps to have multi gpus rendering or decharge the 3090 while you can use the 1070 for others soft and keep the 3090 only form 3d rendering

Helps in what way?  Having an extra GPU adds a decent amount of extra idle power consumption.

Router:  Intel Celeron N5105 (pfSense) WiFi: Zyxel NWA210AX (1.44Gbit peak at 160Mhz 2x2 MIMO, ~900Mbit at 80Mhz)

Switches: Netgear MS510TXUP, Netgear MS510TXPP, Netgear GS110EMX
ISPs: Zen Full Fibre 900 (~915Mbit) + Three 5G (~500Mbit average)

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


×