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Diamond 7970 vs Sapphire 7950

post #1 of 16
Thread Starter 
Below are two reference design cards..

Diamond 7970

http://www.newegg.com/Product/Product.aspx?Item=N82E16814103201


Sapphire 7950

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202030

Can someone explain the power phase? Which is better? Also which one do you guys recommend?

I currently have two 7950's reference cards. But both of the bios's are boost bios. I am looking for a non boost bios card. So i am thinking about getting to 7970.
Edited by PainKiller89 - 5/21/13 at 5:51pm
post #2 of 16
I see one card, and what is your question?
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post #3 of 16
Thread Starter 
Quote:
Originally Posted by 0CALEFACTION0 View Post

I see one card, and what is your question?

Refresh
post #4 of 16
Alright I wouldn't be able to explain the power phases very well, but I do know for a fact that the Diamond card is voltage locked so overclocking is difficult.
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post #5 of 16
Those actually aren't reference 7950s; they use 7970 PCBs and coolers (the reference 7950 was different).

There is an entire thread dedicated to that model here.

Most don't mind the boost state clocks (I'm not a fan as you are though), but you could ask there regarding ways around it.
It might be possible to flash to a 7970 reference BIOS, but again I would ask there first to avoid potentially bricking your card + having to re-flash it etc.
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post #6 of 16
Quote:
Originally Posted by 0CALEFACTION0 View Post

Alright I wouldn't be able to explain the power phases very well, but I do know for a fact that the Diamond card is voltage locked so overclocking is difficult.

No diamond 7970 is a true reference card. Voltage control + ref pcb > any 7970
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post #7 of 16
Quote:
Originally Posted by sugarhell View Post

No diamond 7970 is a true reference card. Voltage control + ref pcb > any 7970

My bad then. Must have been the other Diamond I was looking at today.
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post #8 of 16
the diamond hd 7970 is true reference HD 7970 PCB with voltage control. one of the best HD 7970 cards. the sapphire hd 7950 boost (100352-4L) is a HD 7950 boost built on a HD 7970 PCB . but with lesser power phases. go with diamond.
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post #9 of 16
I just bought that Diamond Card from Newegg. I bought it due to its one of the best and almost the only last Reference Card out there. I'd say go for it. thumb.gif
Edited by Xero Omega1 - 5/22/13 at 4:21am
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post #10 of 16
Thread Starter 
Bought one also, will test it once i get it in. My question is if i get two 7970's is 850W PSU Enough?

what about two 7950's? how much wattage you need? I been running two 7950's with 850W didn't know if i was over killing it.
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