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Piledriver - Page 59

post #581 of 627
Quote:
Originally Posted by Gundamnitpete View Post

Overclocking the NB does very little on the FX chips, or so I read.
I came from a 1055T, and my render times in vegas went down 50%. massive improvement.

Drat, I hadn't considered I have to relearn some of what I know about overclocking. Just to be sure, when you say NB, you are talking about the CPU<-->NB connection and not just the NB itself, right?
post #582 of 627
Quote:
Originally Posted by gr8sho View Post

Drat, I hadn't considered I have to relearn some of what I know about overclocking. Just to be sure, when you say NB, you are talking about the CPU<-->NB connection and not just the NB itself, right?

Yeah, I'm talking about NB speed (I.E. 2000mhz stock speed). The CPUNB voltage can be bumped a bit but only if needed. As far as I know, that has to do with the memory controller.

I would use as little of it as you can though. Core temps get real hot when bumping up CPUNB voltage.
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post #583 of 627
Quote:
Originally Posted by Gundamnitpete View Post

Overclocking the NB does very little on the FX chips, or so I read.
I came from a 1055T, and my render times in vegas went down 50%. massive improvment.

Right. I use PhenomMSRTweaker to help with heat issue at idle. I'll have to experiment a bit with the new CPU when I get it installed to see what that situation looks like.

Before the year is out I hope to get some proper watercooling on this thing.
post #584 of 627
Quote:
Originally Posted by gr8sho View Post

Right. I use PhenomMSRTweaker to help with heat issue at idle. I'll have to experiment a bit with the new CPU when I get it installed to see what that situation looks like.
Before the year is out I hope to get some proper watercooling on this thing.

I've got some improper water cooling on my 8120(H60) and it gets to 4.3ghz(1.2ghz OC).

I'm assuming the 8350 will get +4.6 with my weak cooling solution, as its what's holding me back right now.
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post #585 of 627
Quote:
Originally Posted by gr8sho View Post

Quote:
Originally Posted by Gundamnitpete View Post

Overclocking the NB does very little on the FX chips, or so I read.
I came from a 1055T, and my render times in vegas went down 50%. massive improvement.

Drat, I hadn't considered I have to relearn some of what I know about overclocking. Just to be sure, when you say NB, you are talking about the CPU<-->NB connection and not just the NB itself, right?
Yes cpu-nb is the memory controller. Here is an example. My Deneb 965 c3 has the NB overclocked to 2750MHz. That gives me a memory bandwidth of 16Gb/s. While if I leave it at 2000MHz I am lucky if I get 10Gb/s. So in other words the higher the NB clock the more memory bandwidth available to the processor
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post #586 of 627
Quote:
Originally Posted by Tweeky View Post

Putting It All Together: Five Architectures At 4 GHz



What effect do all of those adjustments have on Piledriver's per-cycle performance? We ran five different architectures at 4 GHz to compare their relative results.

At first glance that looks like a valid and useful test. But in reality it is completely meaningless. .It's not just the 1100T being overclocked to 4GHz. But actually ALL of the chips in that test are overclocked. Except for the 8350, which is at stock speed. So the 8350 is at a disadvantage in that test.

I've been a loyal Tomshardware reader for over a decade. But ever since I've been on oc.net I've heard people say that TH is an Intel-biased review site. And I never believed it until recently. Every now and then they throw in a test like that, which serves absolutely no purpose except to try to make AMD look worse. I no longer give TH the credibility I once did.
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post #587 of 627
Quote:
Originally Posted by Alastair View Post

Yes cpu-nb is the memory controller. Here is an example. My Deneb 965 c3 has the NB overclocked to 2750MHz. That gives me a memory bandwidth of 16Gb/s. While if I leave it at 2000MHz I am lucky if I get 10Gb/s. So in other words the higher the NB clock the more memory bandwidth available to the processor

Yes, in fact I am doing something similar right now. And yes this generates a lot more heat.

I was reacting to an earlier post that said this type of tweak is not valid on an FX processor.

I have yet to find OC guide for FX, not that I've actually focused on finding. If anyone has such a guide handy via a link, would appreciate seeing it. I'll eventually move my discussion on OC over to the C5F thread.
post #588 of 627
Microcenter has updated the price of the 8320 and 8350.
post #589 of 627
Quote:
Originally Posted by gr8sho View Post

Yes, in fact I am doing something similar right now. And yes this generates a lot more heat.
I was reacting to an earlier post that said this type of tweak is not valid on an FX processor.
I have yet to find OC guide for FX, not that I've actually focused on finding. If anyone has such a guide handy via a link, would appreciate seeing it. I'll eventually move my discussion on OC over to the C5F thread.

Here you go sir.
http://forums.tweaktown.com/gigabyte/46237-bulldozer-overclocking-guide-performance-scaling-charts-max-ocs-ln2-results-coming.html
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post #590 of 627
Thanks. I have two links to peruse now while I bide my time waiting for the Vishera to arrive.
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