I actually disagree. My opinion is biased, but Intel makes a better product. My opinion is based on managing tens of thousands of systems over the last few jobs I had. I saw AMDs with more failures than over Intel.
I will say that I hardly ever see a processor fail. Usually, the motherboard fails first, and every modern motherboard I know of has what is called a mosfet chip in it. Which basically takes the voltage and kills the board to save the processor. Kind of like jumping in front of a bullet for someone. This is not the design of what mosfet transistor, but it is a side effect. As they switch the voltages to maintain lower heat and control spikes, they will blown in the event of something gone bad, rendering the motherboard defective and typically shutting the machine off. Thus, saving the processor.
I think maybe I would see a hand full (10 or under) total processors fail every year I have worked. The failure rate was higher in AMDs, however, it was no where near 1 out of 10.
Now, if the system you are running the processor in, has inferior designed hardware, lack of a mosfet system controlling or an inferior one. A power supply that doesn't give out constant voltage/wattage and likes to spike or surge. You are going to see higher failure rates. That is why I brought up that it is subjective to what you mean by 1 out of 10 fail.
I remember 6 or 7 (heck, it may have been 8 years now!) years ago when I was doing mostly hardware tech work for a warranty repair shop, we saw a bunch of dead machines come in (from a specific model of computer) and you could pop the side panel off and sure enough the MOSFET transistor were blown on them, all of them. This was due to a shoddy power supply and not a single one of them had a bad processor. The power supply for that PC company ended up having a recall on it and we would swap out PSU and motherboard to fix the issue.
Oh and one more thing...
To say that 1 out of 10 just fail and not taking other hardware into consideration is pretty moot. As a processor by itself can't do anything and it is just one major component required for computers to work. So, of course you must take the other components into consideration when talking about failure rates.