How well does BD respond to CPU-NB OC'ing?

[MLSCrow]

Just as the title sounds, I'm wondering if Bulldozer architecture responds to CPU-NB overclocking the same way Phenom II does. It will determine whether or not I buy a new motherboard as mine cannot seem to handle anything over 2200MHz.

I know that Thuban responded better to CPU-NB overclocking than frequency OC'ing, which was a surprise. I haven't seen anything about it with regard to BD arch though. If anyone can shed some light on this for me, I'd appreciate it. Thanks.

 

[Durvelle27]

not really

 

[soccerballtux]

Not sure why nobody has tested this. It probably does help a lot.
Can someone do some OC'ing on an 8120/50 and report back?
I noticed it helped with minimums in games a lot.

 

[PG]

It has been tested and does not help performance much:

http://www.tweakpc.de/hardware/tests/cpu/amd_fx-8150_bulldozer/s12.php

 

[2is]

Not sure why nobody has tested this. It probably does help a lot.
Can someone do some OC'ing on an 8120/50 and report back?
I noticed it helped with minimums in games a lot.

I've noticed most of the performance people notice via NB overclocking is imagined.

 

[AtenRa]

Some applications will gain a small performance boost, others will not.

 

[inf64]

Not much of a gain I'm afraid. The L3 is fast as it is in BD,the problem is L1D cache(policy and size) and slowish L2.

 

[pantsaregood]

This is another case of "Thuban was better," unfortunately. A large portion of Thubans would hit 4.0 GHz core and 3.0 GHz L3, leading to a 21% increase in clock speed (on a 1100T - more on others, of course) and a 12.5% increase in performance from cache overclocking. That's about 36% faster than stock.

Bulldozer cores may be individually too slow to really benefit from faster cache, though.

 

[Durvelle27]

i tried it at 2400MHz didn't do any better over 2200MHz