Good/cheap psu for crossfire radeon hd 7970 black edition

NoobishPCBuilder · Mar 3, 2014

Hello guys, I am assembling my first gaming computer so I am still a bit of a noob on this particular area. These are the parts I am going to be using:
Case: Coolermaster HAF932 Advanced
CPU: intel I5 4670k
Motherboard: Asrock fatal1ty killer
RAM; 2x 8 gb g.skill ripjaws x
Grapics card: XFX radeon hd 7970 Black edition.
I am thinking about adding another 7970 BE, but I have read mixed comments about the powersupply I will need for crossfiring these cards. I am also thinking about overclocking my cpu and GPU's, but what PSU do i need then and is my cooling good enough?

Thanks,
Noobish pc builder

EasyLover · Mar 3, 2014

Your estimated wattage requirement for crossfire is 712W. So better option is to buy 750W. Here are some options for you:

http://pcpartpicker.com/part/corsair-power-supply-cx750
http://pcpartpicker.com/part/xfx-power-supply-p1750snlb9
http://pcpartpicker.com/part/evga-power-supply-120pb0750kr
http://pcpartpicker.com/part/corsair-power-supply-cs750m
http://pcpartpicker.com/part/corsair-power-supply-tx750v2

Dark Lord of Tech · Mar 3, 2014

If your going to overclock with the Crossfire jump to a 850w. for extra power , here are some nice deals on SEASONIC made power supplies.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Antec HCG M 850W 80+ Bronze Certified Semi-Modular ATX Power Supply ($118.99 @ SuperBiiz)
Total: $118.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-03 11:32 EST-0500)

or

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 850W 80+ Bronze Certified Semi-Modular ATX Power Supply ($114.99 @ NCIX US)
Total: $114.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-03 11:33 EST-0500)

or

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: SeaSonic M12II 850W 80+ Bronze Certified Semi-Modular ATX Power Supply ($119.99 @ Amazon)
Total: $119.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-03 11:34 EST-0500)

EasyLover · Mar 3, 2014

Yes, with overclocking go for 850W.

NoobishPCBuilder · Mar 3, 2014

thankyou. I am not going to get the 850W now though, since i am on a tight budget. I am going to get the Cooler Master gx 550w, and when I'm getting the second 7970 BE, I'm going to sell the PSU and buy the 850W.

Dark Lord of Tech · Mar 3, 2014

gx 550w < That PSU is very poor.

Dark Lord of Tech · Mar 3, 2014

For now get a quality SEASONIC.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)
Total: $49.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-03 13:34 EST-0500)

EasyLover · Mar 3, 2014

Bad move. It is like getting two PSUs. It is better to buy one now that will fulfill your future requirement as well. You are willing to pay twice which you can easily save by buying one with enough headroom for current and future requirements.

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Good/cheap psu for crossfire radeon hd 7970 black edition

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