R9 390 Crossfire PSU

[TheBigWerewolf]

If I add one more R9 390 in my rig will my psu handle it? Full specs:
FX-8320 4.7 oced
Asus M5A97 EVO R2.0
2x Kingston 8GB 1866
Noctua NH-D15
Sapphire R9 390 Nitro
EVGA SuperNOVA 850 G2
1x 2TB HDD
1x 120GB SSD

 

[Dark Lord of Tech]

You want 1000w for 390 CF.

 

[rcald2000]

^ Agreed.

TheBigWerewolf Instead of purchasing a second R9 390, I have two other suggestions:

* sell R9 390
* buy two RX 580 8 GB; rumored to be announced as soon as tomorrow (18-4-17) OR
* buy one GTX 1070

Power requirements for graphics cards
http://www.realhardtechx.com/index_archivos/Page362.htm

Generic comparison of R9 390 vs RX 480 performance
http://gpu.userbenchmark.com/Compare/AMD-R9-390-vs-AMD-RX-480/3481vs3634

JayzTwoCents: AMD RX480 Crossfire vs GTX1080 vs GTX1070 vs 970 SSC SLI
note: review showcases reference RX 480 only.
https://www.youtube.com/watch?v=cVVJPbFRDEc

Gamers Nexus: CrossFire RX 480 vs. GTX 1070, GTX 1080 (FPS, Power, Thermals)
note: review showcases reference RX 480 only.
https://www.youtube.com/watch?v=A4D3UKBRA_w

Conclusion: A single GTX 1070 and two RX 480's only necessitate a 500 and 650 watt power supply respectively. I'm assuming that the rumored RX 580 will have an equivalent power requirement to the RX 480. As much as I like SLI and CrossFire, I'd personally lean toward the GTX 1070 single GPU option. Either choice would allow you to hold on to your EVGA G2 850, which is an excellent PSU.