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Conclusion: overall FX4110 is 32% slower than Deneb X4 @ 3.7Ghz stock vs stock and 49% slower when both are at 4.2GHz. Either all these tests are failure of the platform bugs (or something else) or Bulldozer is much slower than Deneb with the same "thread" count. All above tests utilize the "world's first 256bit FPU" and it fails hard versus "old 128bit" Deneb FPU,even in single thread mode... Imagine the OC you have to reach to just match Deneb,it has to be sky high (think 5.5-6Ghz on air to match 4Ghz Deneb). How is AMD going to charge 140$ for this chip is beyond me.

There are some possibilities...
1. They've gone totally nuts.
2. They think people are nuts.
3. They know something we don't...

It could be something simple like new microcode enabling certain features, we'll have to wait and see.

Absolutly possible. But...

In any case, I don't think AMD wants to spread FUD about bad performance. They want it to be unknown, to keep Intel in the dark.

Right, they've kept Intel (and the rest of the world) in the dark for quite some time. But, just why they hold on until the very last day before launch? What depends on a few days?

To me, it looks like the engineers desperately trying to find a solution (in microcode) for some quirk that now hinders performance, but in the meantime the management has lost patience and said just let it go.

Or...

If it was supposedly designed to deliver 30-50% more performance and if Mr Taylor stated this in the context of very parallel workloads (which is legitimate ) then we can say Bulldozer failed since it can't overall outperform Thuban by more than 20%,let alone 30% or now astronomical 50%. In order to achieve this ,the Bulldozer that John Taylor talked about must be the same one from this slide (and no,this slide was not fake). What happened in the meantime ? How from this 30-50% throughput machine we ended up with barely faster than Thuban?

Well, perhaps what is called a "reality check"... You know, AMD is not a single person, but a firm with many people. What if some people deceived some other people in-house...? But then, the moment of the truth has came, when it was about to test or present the actual chip... Then "heads were falling", most notably Dirk Meyer's.