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My personal thoughts on Bulldozer - Page 3

post #21 of 62
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Quote:
Originally Posted by Krähe View Post
Subbed! will be helpful to keep up with any news/developments if its all in one thread, + imaginary rep from me as well
Well, I'm definitely keeping my eyes peeled. And if a magic fix DOES happen to come out, I will certainly make it known. Although I'm sure other members would too, but that's besides the point...
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post #22 of 62
It's easy for someone in my position to take it easy on the BD architecture and allow it time to go through its growing pains since the processor powering my current desktop is perfectly suited to my needs and uses but you can't really blame the disappointment and outrage from all those enthusiasts looking forward to a nicely performing BD chip (which in at least a few regards it still is I believe, especially at the 8120 price point) that was at the very least a clear upgrade from the thubans and thus an easy upgrade decision for those with am3+ boards.

I'm hoping this is just the first step (or misstep as many would call it) in what will eventually be a very successful architecture for AMD and us consumers at the very least in the bang for the buck department.
post #23 of 62
I'm not holding my breath. I think AMD simply does not care too much about the enthusiast end.
    
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post #24 of 62
Quote:
Originally Posted by allikat View Post
Also worth remembering, is that the 990 platform returns SLI to AMD, which is worth an upgrade to some of us, even if we don't swap to BD chips. I for one, welcome the way out of the SLI hack hell.

If nothing else, these chips allow a few quick HWBot points
What's the problem with the hack? As far as I have seen, people don't complain about it, and they get the same performance as any other SLI certified mobos...
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post #25 of 62
I agree with the majority of what you said, but I don't think there is going to be a silver lining here. Perhaps there will be more improvements and there is some untapped performance we haven't seen from Bulldozer.

But I think what we are really witnessing is AMD seceding to Intel in the enthusiast end...focusing more on AMD fusion where there is greater market share to be gained.

If I had to buy a desktop processor for gaming, it would be an i5 2500k hands down. But I'd agree with most, AMD lost this battle. But this is small potatoes when looking at the big picture.
    
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post #26 of 62
In all due respect this morning, this decision comes down to the enthusiast. I have owned AMD for many years, and while competing benchmark-wise, my Sandy rig simply bests my hexacore systems...I use them both equally. I'd rather have one of each actually because they both provide advantages over the other. I game on my AMD because I'm used to doing that, and maybe one day Super PI will be re-written to close the #s gap whereas wPrime shows that the benches are minimal in difference. Will I finish my 2nd SB Z68 rig and bench it to death? Sure. That's a no brainer.
Will I get an FX8150 and a 990FX and save AMD some face in the synthetic benchmark world? And I get some SLi back too? You know it.
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post #27 of 62
Some people still hope that there is some software bug like the cache corruption that can bee fixed with a patch. I doubt that AMD would have released BD before something like that was fixed. My gestimate is that even with all the bios/OS tweaks we will only see a few percent increase performance. Perhaps they can do better with the next stepping.

That's my 2 cents. I do hope I'm wrong as I had so high hopes for BD. Subbing to see how this turns out.
    
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post #28 of 62
I said this in the Bulldozer Blog thread but will repeat it here:

The performance gain in single threaded when disabling one core in each module is exactly as AMD discussed pre-launch. The CMT design takes a 10-20% performance hit compared to 2 separate "Bulldozer" cores. It also explains the unexpectedly poor performance of the FX launch.

With one core disabled you are seeing roughly Phenom II IPC. In order for a full module to show an improvement over 2 Phenom II cores it would have to have single core performance improve by 20%+ to compensate for the losses from the shared nature of a module.

I was pretty shocked that they didn't at least hit that IPC. Were they planning on relying on higher clocks say 4GHz base and OCs of 5.5-6GHz? If they did have IPC targets of 20+% for a singleton module what has caused this drastic miss?

I hope someone runs some server software on these FX chips just to get a sense if Bulldozer is actually a performer in the server environment.
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post #29 of 62
Didnt the new CEO cancel a load of upcoming products?

Based on the theory that they were not of the quality the new guy wants, I'd say Bulldozer would be in the same boat. Except the new CEO couldnt cancel this product with it being so close to release.

I'd call Bulldozer the last of the old AMD, so I'm more interested in seeing what happens when the first products from under the stewardship of the new guy come out.
    
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post #30 of 62
I've been reading throw XS and disabling 1core per module, seems to be a nice option.

It performs better than 2module/4c.

Would be nice to see some comparison between phenomIIx4 vs 4module/4core bulldozer @ same clocks.

I dont understand why IPC on BD is worse than phenom II, since Phenom II has 3 instructions per clock and BD has 4 instructions per clock.
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