850 watt psu for dual r9 390s?

[JimmyRay]

I currently have an 850 watt antec bronze rated psu and a single r9 390. I wanted to know if i could run two of these beasts on a my 850 watt psu. if not please let me know watt (lol) i need to do to make this possible.

 

[rhysiam]

Yup, a good 850W PSU is perfect for CFX 390s. Antec PSUs range from decent to very high quality, they don't release any trashy models, so you're good to go.

 

[Junior Signore]

ya 850w is more then enough so go head and slap those bad boys in

 

[JimmyRay]

Yup, a good 850W PSU is perfect for CFX 390s. Antec PSUs range from decent to very high quality, they don't release any trashy models, so you're good to go.

Ive had this one for about 1.5 years and its quiet, i never pull more than 575 watts under load with my system, and that up from 450 with my old 970 so im not really too worried about burning it up. Thank you.

 

[JackNaylorPE]

According to TPU's measurements, each card is capable pf pulling between 253 and 323 watts
http://www.techpowerup.com/reviews/Powercolor/R9_390_PCS_Plus/28.html

Guru3d pulled 283 watts
http://www.guru3d.com/articles_pages/powercolor_radeon_r9_390_pcs_8gb_review,8.html

Call it 300 watts per card x 2 = 600 watts w/o overclocking..... 660 or so with

Add in an 90 watts for CPU (135 overclocked) for Z97 ... + say 50 watts for system loads and 10% extra for capacitor aging and we at 814 watts stock, so you'd be fine with an 850 watter. If overclocking cards and CPU, I'd go 1050 watter as we at 930 overclocked.

Add 100 watts to those figures for an overclocked X99 system