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7970 Crossfire deliberation.

Tags:
  • XFX
  • Power Consumption
  • Graphics
Last response: in Graphics & Displays
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October 18, 2013 1:16:14 PM

I'm currently considering purchasing an extra 7970, but I'm worried about the age old problem of power consumption. Here's what i've got :
850W XFX PSU
Z77 Sabretooth
i3770k
xfx 7970 black edition.
1x SSD & 1x HDD
I've also got a fair few case fans if that makes any difference. Would I be able to get away with an extra xfx 7970 standard edition? I know I made made a mistake sticking with XFX, but the single 7970 works pretty good, just want a performance boost. The amazon page says it uses 500w, but people report otherwise when running crossfire. Any help would be appreciated.

More about : 7970 crossfire deliberation

October 18, 2013 1:38:18 PM

850 watt is more than enough for Xfiring the 7970's.
Also XFX/SEASONIC makes the best of PSU's.
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October 18, 2013 4:59:38 PM

Thanks dude, may I ask one last question. I have the black edition, but my budget is £260 so i'm thinking of getting a standard DD XFX 7970 for the second card, it's core clock is 925? and the black edition one is 1000, just wondering if there is any discrepancies if I don't get the EXACT same models. What do you think? Do I have to buy another black edition? I'm a nub to crossfires, but I literally can't wait to witness the graphics explosion.
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October 18, 2013 4:59:41 PM

Thanks dude, may I ask one last question. I have the black edition, but my budget is £260 so i'm thinking of getting a standard DD XFX 7970 for the second card, it's core clock is 925? and the black edition one is 1000, just wondering if there is any discrepancies if I don't get the EXACT same models. What do you think? Do I have to buy another black edition? I'm a nub to crossfires, but I literally can't wait to witness the graphics explosion.
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Best solution

October 18, 2013 11:42:30 PM

Thomas Watkins said:
Thanks dude, may I ask one last question. I have the black edition, but my budget is £260 so i'm thinking of getting a standard DD XFX 7970 for the second card, it's core clock is 925? and the black edition one is 1000, just wondering if there is any discrepancies if I don't get the EXACT same models. What do you think? Do I have to buy another black edition? I'm a nub to crossfires, but I literally can't wait to witness the graphics explosion.


When you crossfire 2 cards with different clock speeds, they'll both work on the lowest clock speed between the two, so your cards will work on the 925MHz Clock speed instead of the 1000MHz.
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October 19, 2013 9:51:03 AM

Thanks dude, I've just cancelled my order before it dispatched, going to spend the extra £20 on the black edition now I found it nice and cheap on Amazon. £264. And literally all the other websites are charging £320. Muchos gracias, I can't wait to enter the world of insane frames per second.
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October 19, 2013 10:05:09 AM

Glad to help a fellow buider ;) 
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