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1090t + HD 6990 bottleneck?

post #1 of 20
Thread Starter 
I'm purchasing an XFX HD6990 soon, and I was wondering if I would have to overclock to prevent bottlenecking? I did a bit of google searching and found a thread made by someone with a rig almost just like mine. He posted:

Overclock CPU to 4Ghz or around 1.4v
Set HT to 2000Mhz auto voltage
Set NB to 2800 or more 1.3v
SB left on auto with auto volts

Would that work?
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post #2 of 20
That should work fine, Anything around 3.8ghz+ should be fine for my x4 965 so a x6 should have 0 issues.

Enjoy the power!
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post #3 of 20
There will be no problems.

Even without overclockig it shouldn't be noticeable. The only time you will truly notice a bottleneck is with benchmarks. The X6 line are very powerful CPU's, even though they arn't quite on par with Intel.
Edited by THEoBZ - 4/19/11 at 8:38am
post #4 of 20
you shouldn't worry about bottleneck especially at 1920x1080 resolution and above. I assume you're gonna be playing at a resolution like that or maybe even bigger so a phenom II 1090T @ 4gh will be more than enough.
 
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post #5 of 20
Quote:
Originally Posted by Crashman503;13188580 
I'm purchasing an XFX HD6990 soon, and I was wondering if I would have to overclock to prevent bottlenecking? I did a bit of google searching and found a thread made by someone with a rig almost just like mine. He posted:

Overclock CPU to 4Ghz or around 1.4v
Set HT to 2000Mhz auto voltage
Set NB to 2800 or more 1.3v
SB left on auto with auto volts

Would that work?

If you consider getting 150 fps in game X with AMD as opposed to 175 with Intel a bottleneck then yes AMD does bottleneck it. If not your good to go! biggrin.gif
post #6 of 20
Quote:
Originally Posted by RussianJ;13188589 
That should work fine, Anything around 3.8ghz+ should be fine for my x4 965 so a x6 should have 0 issues.

Enjoy the power!

Sorry to get off topic. RussianJ what voltage do you have your 6970 at? And what are you max temps?
     
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post #7 of 20
Thread Starter 
Sweet. I had a 6950 that I was trying to unlock, but it was a non reference card. I got the shaders unlocked but I couldn't push it past 840/1375 without problems, and I didn't want to mess with voltages since I'm still learning. I sent it back and am waiting for the refund to get the 6990.
Edited by Crashman503 - 4/19/11 at 8:43am
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post #8 of 20
Bottleneck? Highly doubt it, but I have seen people post performance increase moving away from that CPU. Maybe its just because it is older tech, yah that is probably what is it.
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post #9 of 20
oh I love bottleneck threads!! No man you will be fine drum.gif

If you want some detailed help with an OC with that CPU and board, check out the official thread @

http://www.overclock.net/amd-motherboards/682489-official-asus-crosshair-iv-formula-extreme-910.html


Beware of the Bottleneck fear mongers!!!!!!!
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post #10 of 20
Anything past 3.6Ghz will remove any bottleneck. Higher the better. As always, check stability and temps. Good Luck smile.gif
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