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[Xbitlabs] Ex-AMD Engineer Explains Bulldozer Fiasco: Lack of Fine Tuning

post #1 of 51
Thread Starter 
I hope its not a repost.
Quote:
Performance that Advanced Micro Devices' eight-core processor demonstrated in real-world applications is far from impressive as the chip barely outperforms competing quad-core central processing units from Intel. The reason why performance of the long-awaited Bulldozer was below expectations is not only because it was late, but because AMD had adopted design techniques that did not allow it tweak performance, according to an ex-AMD engineer.
http://www.xbitlabs.com/news/cpu/dis...er_Fiasco.html
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post #2 of 51
It is.

Edit: I swear I was just in a thread about this. Not sure where it is now...

Here's the thread in the AMD CPUs section. I guess this isn't a news repost, then.
Edited by t-ramp - 10/14/11 at 9:34am
post #3 of 51
It was locked.
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post #4 of 51
Sounds like a bad decision by management that led to a generally lackluster new processor series. Engineering decisions should be made by engineers, no one else.
post #5 of 51
This is a joke. Fine tuning? Seriously? GPU's plagued with IQ and drivers problems and CPU's are underpowered.
post #6 of 51
In before all of that "inb4" garbage. Just had to say that.

That's a terrible decision it seems. Why doesn't AMD go back to hand crafted designs to catch up with Intel... It seems using the automatic tools is whats really preventing them from catching Intel.
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post #7 of 51
Let's see when they will learn..

edit: can anyone shed light on why it's bad to use automated tools and have a high transistor count??
xbit explains some but I don't fully understand why it's THAT bad.
Edited by Foxdie - 10/14/11 at 10:06am
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post #8 of 51
thats an interesting read, cool stuff mane.

looks like some high level managers are going to be canned, and should be without severance after this flop.
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post #9 of 51
Quote:
Originally Posted by Goatboy View Post
Sounds like a bad decision by management that led to a generally lackluster new processor series. Engineering decisions should be made by engineers, no one else.
Says who?

Engineers make decisions based on time/money/skills/resource constraints. They must work within constraints or else project would never be profitable or completed. Many (if not all) engineers are required to take at least one course in economics for a reason.

Quote:
Originally Posted by rivaldog View Post
That's a terrible decision it seems. Why doesn't AMD go back to hand crafted designs to catch up with Intel... It seems using the automatic tools is whats really preventing them from catching Intel.
Because it take more time, money, and talent.


Quote:
Originally Posted by t00sl0w View Post
looks like some high level managers are going to be canned, and should be without severance after this flop.
Probably not.... AMD had to finish Bulldozer sooner than later and within a budget. They maybe just launching and the 2nd iteration will have the necessary refinements. (like the NVIDIA GF100 => GF110)






Everyone please stop making assumptions on what AMD did without a full understanding of how things work....
Edited by DuckieHo - 10/14/11 at 10:14am
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post #10 of 51
Quote:
Originally Posted by Foxdie View Post
Let's see when they will learn..

edit: can anyone shed light on why it's bad to use automated tools and have a high transistor count??
xbit explains some but I don't fully understand why it's THAT bad.
Using automated tools too much is bad, because they don't care how efficient the design is. Higher transistor would probably mean bigger die size and more power, I think.(could be wrong)
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