Overclocked Opteron vs. Fx-57 and others

[n19htmare]

I was sitting here pondering about this and I have questions.
I picked up a opty 146 on which I was able to hit 3gigs on stock air (idle temp at 44) on MSI Neo plat 2. This was fairly an easy oc.

Now, I see the FX-57 and other chips like the 3700+ and 4000+ and so on.
Now the opty's clock speed is faster than all others at stock. But lets just take the opty and FX-57 for now.

What is the difference of an opty at 2.8 and FX-57 at 2.8? both have the same amount of L1 and l2 cache, is the Quality of the Cache and Core? Would the quality improve processor speed or will it just add durability and stability in the long run?

Also, what would be the opty at 3gigs be relative to? like a 4800+ or something?

just pondering and learning.

 

[The Green Bean]

Opteron @ 2.8GHZ = fx 2.8GHZ when running at the same voltage. Otherwise, there will be more heat, and will last shorter (relatively speaking - not that it matters)

 

[Hard Ball]

The largest benefit of the FX series is the unlocked multiplier. So if you have adequate cooling, I mean more in terms of Water cooling on the low end, or phase change/LN2 on the high end; you would be able to hit unconventional speeds, much beyond what normal OCer will be able to do. Some have OCed their FXs to 3.6-4.0 GHz, with very specialized cooling such as LN2.