How powerful do I need a power supply??

[hi_im_Linardd]

Hello! I have a question! Please help! I Want to crossfire 2X Asus ROG Strix Rx 570.

 

Specs.

Motherboard: MSI B250M mortar

CPU: i5-7600K

RAM: 16GB DDR4 2400GHZ

CPU COOLER: deepcool gammaxx l240 v2 

Ssd 120gb 2.5

2tb hdd. 

 

And I'm interested in how powerful I need PSU for 2x rx 570?

 

[PDifolco]

CPU <100W, GPU 2x200W + 150W room for transient (may not be an issue with those cards, idk) + 100W for stuff , I'd say 750W+ PSU

[BiotechBen]

Don't. As someone with a 480, the crossfire "boost" is not worth it, plus the game needs to support dual GPU which most don't.

[Kid.Lazer]

I'll answer your question with a question: WHY? Crossfire and SLI have been dead for years, and even before that it was a terrible experience. Sell both of them and buy a better GPU if you're looking for more performance. 570's are still worth ~$125 used.

[BiotechBen]

Just now, PDifolco said:

CPU <100W, GPU 2x200W + 150W room for transient (may not be an issue with those cards, idk) + 100W for stuff , I'd say 750W+ PSU

My 480 I have yet to get to draw above 126w of it's "150w" rating.

[hi_im_Linardd]

1 minute ago, PDifolco said:

CPU <100W, GPU 2x200W + 150W room for transient (may not be an issue with those cards, idk) + 100W for stuff , I'd say 750W+ PSU

PSU Calculator Shows need 550w or 600w

 

[Fasauceome]

1 hour ago, hi_im_Linardd said:

PSU Calculator Shows need 550w or 600w

 

Online PSU calculators are generally unreliable. But also

 

1 hour ago, PDifolco said:

CPU <100W, GPU 2x200W + 150W room for transient (may not be an issue with those cards, idk) + 100W for stuff , I'd say 750W+ PSU

150 watts transient would be pretty extreme for this particular setup. A 600 watt power supply would be sufficient.

 

Despite that , as mentioned already a dual 570 setup is pretty pointless. Selling the RX 570 and getting a used RX 580 or 590, or even one of the newer cards like an RX 5600 would be a nice boost.

[--SID--]

CF sucks on a motherboard that runs the 2nd PCI-e slot with 4 chipset lanes. Tha heck, CF sucks at all.

[PDifolco]

2 hours ago, Fasauceome said:

Online PSU calculators are generally unreliable. But also

 

150 watts transient would be pretty extreme for this particular setup. A 600 watt power supply would be sufficient.

 

Despite that , as mentioned already a dual 570 setup is pretty pointless. Selling the RX 570 and getting a used RX 580 or 590, or even one of the newer cards like an RX 5600 would be a nice boost.

Ok, I voluntarily bloated the figures, first because idk shit about rx570 and second because better safe than sorry