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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1853

post #18521 of 38701
Quote:
Originally Posted by evolutionxxx86 View Post

I'm thinking of getting BF3, never played any of them before.

You should, with 2x 7970 and a cpu on 5.0ghz, i'm guessing your playing on at least 1440p?
Battlefield 3 is a great game and besides, it looks amazing on Ultra.
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post #18522 of 38701
Quote:
Originally Posted by tommiyacht View Post

strongly recommend not to bump your mems and keep it stock.

Thanks for posting but what's your theory behind keeping it stock?

I'm fairly sure it's the same memory modules just underclocked/undervolted?

Stock 7970 memory voltage is 1.75 or something so surely 1.7 on a 7950 will be fine?

A member of OCN who could actually be bothered filling in their rig says it's fine, and I'm more inclined to listen to an actual member with posts and rep, no offence.

Can anyone say they've been running higher memory voltage for an extended period with no issues?

Thanks again.

edit card asic rating 86 thumb.gif
Edited by Casey Ryback - 12/6/12 at 5:29pm
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post #18523 of 38701
Quote:
Thanks for posting but what's your theory behind keeping it stock?

I'm fairly sure it's the same memory modules just underclocked/undervolted?

Stock 7970 memory voltage is 1.75 or something so surely 1.7 on a 7950 will be fine?

A member of OCN who could actually be bothered filling in their rig says it's fine, and I'm more inclined to listen to an actual member with posts and rep, no offence.

Can anyone say they've been running higher memory voltage for an extended period with no issues?

Thanks again.

edit card asic rating 86

umm noo the 7970's come with 1.6 volts stock mem voltage just like the 7950's. You can increase the memory voltage, and attempt to go further with your memory. However in most cases your doing it for no good reason, other than more heat and power draw. the 7950/7970 are not really memory limited. Only a handful of games will see any real benefit for your extra trouble.
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post #18524 of 38701
Running my 7950 CFX setup on 1125/1425 @1.188mV now. As said earlier, whatever I do.. As soon as I raise my memory clock from 1425mhz to 1450mhz or so, my BF3 will lockup within two minutes. Would I actually gain a decent amount of performance by increasing my memory clock higher than 1425mhz, or isn't it worth the hassle? I play at 2560x1440.

How much performance do I gain by raising my memory compared to raising the core clock? Is it worth it or should I just stick with 1425mhz and perhaps try to push my core a little more, or just stick with what I have now.
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post #18525 of 38701
Gains from ocing your mem are so small that they are only worth it to the benchers/ extreme overclockers.
post #18526 of 38701
Quote:
Originally Posted by Anomander Rake View Post

Gains from ocing your mem are so small that they are only worth it to the benchers/ extreme overclockers.

A gain is a gain. Some of us will take every fraction of a frame we can get.
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post #18527 of 38701
Quote:
Originally Posted by EternalRest View Post

Anyone have experience with HIS 7950 Boost? Thinking getting it soon. How are HIS cards in general? This will be my first AMD card I will have.

bump?
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post #18528 of 38701
HIS is a midrange brand, from my observations. They don't do anything to stand out, and their cards are louder than average, but I've seen very few people having problems with them also. I'd say they're pretty reliable, in all honesty, even though I personally have no desire to buy one.
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post #18529 of 38701
I'm curious because i didnt understand a few posts above me, when your overclocking a card, it means its going to take up more voltage? and that even if you have an excellent card you can be bottle necked at 4.5ghz cpu?
post #18530 of 38701
Quote:
Originally Posted by EternalRest View Post

bump?

I have that card and at stock clocks it is quiet - only marginally louder than my MSI 7850. I'm running it at 1100 core with an underclock on the memory from 1250 - 1200. I don't know why but it was the only way to get the 1100 core stable. I'm running Boinc and hitting 78c under load but it's been running like that for a week now with no problems. I had some lockups when gettign my overclock stable but it has been trouble free mostly and seems to be a solid card.
 
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