Question

[tnaz71]

Yet again I am going to ask a n00b question but out of curiosity I must....

Is there any positives/negatives overclocking with low multi, high fsb and other way around? From what I have been reading is high multi only effects the cpu, where the higher fsb will effect numerous items as well distribute the overclock instead of just having the cpu overclocked...


Reason I ask is I have a amd 5000 BE, I can get it fairly stable just below 3.3 and very stable at 3232 just using the multiplier and a bit of fsb. Using high fsb, low multi (12.5) I can get 3220ish very stable but beyond that I am doomed... I have tried all the tricks etc but, thats for another topic. It seems to me that the computer is faster with the higher fsb overall, programs load faster, the games run smoother etc.


Pros I see with High multiplier, low fsb is I can run tighter timings on the memory without errors...

Cons is more voltage to get it there, seems to be slower.. (could be my imagination)
--------------------------

Pros for High fsb, low multiplier is lower voltage, seems faster overall. Lower temps due to not needing more voltage, (27idle, 44 load)

Cons ?


As far as my system goes
Amd 5000 BE
M2N-sli deluxe
750watt Psu
4gb corsiar ddr800

I am sorry for yet another noob question

 

[tekzor]

I remember there was an article at toms on this.

Tighter timings vs high fsb was a close battle in performance.
I guess it will come down to price of ram.
Spending on more on quality ram.
Cons of higher fsb I would say is over heating your ram.

Since most amd cpus are multipl locked, you are put in a position to OC the fsb.

 

[Evilonigiri]

Anandtech stated that there is no difference between higher FSB and lower multiplier vs. lower FSB and higher multiplier. In short, the reason was before, the mobos at some FSB would have some sort of timing that wasn't adjustable, thus the higher the frequency the better.

http://www.anandtech.com/cpuchipsets/intel/showdoc.aspx?i=3184

With over a year of experience overclocking the Core 2 family of processors, we have learned a thing or two. One of the most important items we've learned is that higher FSB settings do not necessarily mean better performance. Understandably, this may come as a shock to some. For whatever reason, even a lot of well-regarded, seasoned overclockers seem to place great value in achieving the highest possible FSB. Based on what we know, we always establish our base target MCH overclock at the same spot - 400MHz FSB with a tRD of 6. The only other potential base MCH target value even worth considering is 450MHz with a tRD of 7, which should only be used when extra memory speed is needed or when a low maximum CPU multiplier becomes a limiting factor. Without getting into too much detail, let's examine what we mean by this.