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NB Overclocking? Question from an Intel guy

post #1 of 7
Thread Starter 
Hey everyone, formerly an AMD guy now an Intel guy looking at AMD again...

What the heck is the NB Overclocking? I mean, I know NB = North Bridge, but what exactly does overclocking the north bridge that do with the CPU performance?

I have seen threads/posts where an AMD overclocker pretty is saying that once you overclock the NB, that the CPUs performance is on par with an equally overclocked Intel CPU.

Is this true? I'm considering switching back, mainly because I don't do rendering and all that extra jazz that the Intel CPU really shines in, and could use some money.

Also, I know that most people generally use the BIOs to overclock, but really how bad is AMD Overdrive? I used it maybe once or twice before, and I got the results I wanted. Is it just not as stable? I ask this because the motherboard I'm interested in has troubles with the BIOS and overclocking, and I would rather not spend $30 on heatsinks for another motherboard, but I will if I need to. The motherboard I was interested in was the ECS Black Series 785GM-M. I've had it before and it was actually very solid, just no ACC and as mentioned, the BIOS overclocking quirks.

The Gigabyte GA-880GMA-UD2H is the other motherboard I was looking at, but would have to purchase heatsinks for it, and I am leery on the 4+1 phase design for OCing a x4. I guess an advantage of it is it has ACC. I don't really care for USB 3.0/SATA 3 but at the same price point, might as well.

Also if the NB Overclocking thing is true, are there any posts or pics I may see with some real world benchmarks?
Edited by Kvjavs - 1/12/11 at 10:56pm
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post #2 of 7
yeah it is totally different. Since there is no HT multis like in amd bios it just scales with the processor when you OC it and that is about it. It will fun as fast as the fsb is going or blck since idk if a xeon x3440 is a core i7 xeon or a C2D one. But if you are doing gaming then really a xeon cpu is not good for that. supposedly a i5, one of the higher end ones, is best bang for your buck versus going with amd unless your just looking for what is just cheaper for parts overall.

Edit: Also I have never heard of anyone just OCing the NB on amd cpus and then them being on par. Which if it is true then apparently amd should of made there interconnect tech faster then what they did with there current cpus.
 
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post #3 of 7
The ASUS M4A79XTD EVO ($93.24, $78.24AR - Buy.com) is a very strong motherboard for the price featuring ACC, a great power phase, and all the bells and whistles you will ever need.
post #4 of 7
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
The ASUS M4A79XTD EVO ($93.24, $78.24AR - Buy.com) is a very strong motherboard for the price featuring ACC, a great power phase, and all the bells and whistles you will ever need.
Thanks for the suggestion, however I am very dead set on mATX if I was to downgrade or switch back to AMD. I'm very torn on what I do and do not want. It's really stressing me out.
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post #5 of 7
yeah usually when you go cheap on intel boards they suck. When you do with amd they work decent, at least from my experience. But really if your in a spot for $$ and selling your mb and cpu can break bank you more $$ then what you spend on a amd system on one of the higher end x4 i would say you should see too much of a drop in performance if any at all very noticeable at least. You should still have very doable frame rates as long as you stick with a quad and OC the hell out of it.
 
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post #6 of 7
NB =/ CPU-NB

Here's a good read. AMD cpu's get a pretty good performance boost from oc'ing the CPU-NB.
http://www.anandtech.com/show/3877/a...ance-scaling/7
post #7 of 7
Thread Starter 
Quote:
Originally Posted by A-Dub View Post
NB =/ CPU-NB

Here's a good read. AMD cpu's get a pretty good performance boost from oc'ing the CPU-NB.
http://www.anandtech.com/show/3877/a...ance-scaling/7
That's pretty interesting, will have to pull up some Intel benchies later and compare.
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