There's a huge difference between arrogance(I didn't use this word) and ignorance. Ignorance implies not knowing. Arrogance is better described for AMD for releasing this processor at $800+, regardless of the performance characteristics, pricing of other processors and other characteristics.
To explain why purchasing an fx 9590 is more ignorant than a 3960x is simple. The fx 9590x is the same silicon(down to the same stepping), same amount of cores and chip as fx 8350 or even fx 8320. These processors cost $150-220 dollars. They also have unlocked multipliers too so getting the same frequency is a matter of matching up multipliers.
The 3960x however is unique in a sense that it is the only processor beside the 3930k to have a 6 cores from Intel. The 3930k costs 550 dollars but it a far cry from the around 150-220 dollar range. Thus to get a 6 core from Intel, you need to pay atleast 550 so the marketup isn't as extreme. Plus the 3960x is the fastest processor on the market. In addition, the fx 9590 has performance characteristics are similar to a 4770k but it uses more than double the power and costs 2.5 as much. Plus it overclocks worse for most people.
Thus buying a 9590 makes little sense considering products from Intel(4660k and up) or even AMD(fx8120 and up). The kit guru even showed its overclocking prowess wasn't that special under convention cooling and wasn't stable at standard voltage even at the standard 4.7ghz. 5 ghz didn't even happen under bigger loads unless you overclocked it.
This is directly from the review and I can imagine describes what most informed buyers on what they think of this processor.
"With a TDP of 220W and a price around 700 pounds we do have to ask. What the hell are AMD thinking?"
http://www.kitguru.net/components/cp...te-990fxa-ud5/
The irony of this processor is that this chip is aimed at primarily amateur overclockers( it is mainly being targeted at system builder applications), but under 99.99% of circumstances, this things value decreases vastly under overclocking conditions.
In regards to an earlier post, why I mentioned ghetto is AMD didn't have to spend much money at all and basically no R and D to release this processor. This is AMD attempt to compete with Intel in the ultra high end enthusiast market without having to develop a new chip for it(its not even a new stepping). However it falls terrible short(the silicon of the actual chips shows horribly in the performance and power characteristics) of Intel's effort while costing a similar amount. I think AMD wanted to create a Halo effect with this processor but it fails at that considering the conclusion of that review.
The only saving grace of this processor is it is the first 5ghz processors(but this even comes with caveats) which means very little when the performance is similar to 300 dollar processors.
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