Yes, I understand Warranty.
But it would be nearly impossible to detect a fried CPU by setting the Core Voltage to a reasonable level, such as the one used by the higher end chips.
It is quite common for the lower end Intel and AMD Chips to have lower TDP even though they are identically built chips.
I'm not one for Massive voltage Increase, Water Coolers, and other extreme measures, but rather reasonable overclocks.
Example - My CPU is both OverClocked and set to UnderVoltage.
So I get a faster system that runs cooler. quiter and uses less power than a "stock" system.
If you are not going to OC, then both Intel/AMD systems are very close in performance for chips in the same price range. This would be important when buynig retail/business class computers that often do not have any OC bios features.
From the posters question of comparing on of the fastest AMDs vs a mid-range C2D (at the same price point), it becomes apparent that cost is a deciding factor and he is working within a somewhat limited budget.
Once we know this, we may also conclude that he may very well be making concessions of limits in other parts of his system.
The wonderful thing about current CPUs from both AMD and Intel is that their lower range models can easily match the performance of the top models without extreme overclocking and allow for a definite cost savings.
This cost savings can then be added to an xtra HDD for backup purposes, or perhaps a higher quality PSU so all of your parts do not fry, or perhaps a faster GPU. None of these items are far more fixed in that you can't really improve much upon what you get out of the box. The CPU is the only area in which you can do that.
My last system purchase was nearly $2000 but I only got a lower end CPU. The rest went to lots of RAM ( Virtualization requires more than most folks), lots of HDDs, multiple Nice Monitors, Quality PSU, etc.. etc... etc..
The one area I easily saved money was the CPU, but my CPU is currently UnderVolted and still as fast as the Stock Top of the line CPU from it's line.