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The "Message to AMD" Thread - Page 7

post #61 of 72
Message to AMD:

I know you guys must be pretty upset by how poorly Bulldozer is performing and I truly hope it IS something as simple as a bug and the need for a new BIOS.

However, I find that unlikely, even if something does feel off about the reviews as they are now. The L1 Cache bug would need to be corrupting nearly all of the data it gets for the power draw to go up as high as it does.

I really hope this gets resolved, because if It doesnt you WILL loose the vast majority of computer builders for the forseeable future, and no self respecting server farm would use a Bulldozer chip because of said power draw.
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post #62 of 72
Why resurrect the FX brand for this? You should have saved that for the fixed version. Also, why did you not ensure you were meeting your IPC goals per module. No lessons learned from beating Pentium 4 or from watching other slow many core enterprise CPUs flounder?
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post #63 of 72
I personally feel sorry for AMD, i think they've taken a gamble with the new architecture and we may yet see improvements, to on that note, buying a product because it "might" be better in the future is not a good idea.

Intel must be gearing up for a mass i5-2500k shipment...
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post #64 of 72
Just wait until Windows 8 is released with fully capable scheduling that takes advantage of BD and proper parking of cores for power consumption reduction, efficiency gains, proper threading, and maximizes the potential of the chip.

It'll be like OMG sauce.
    
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post #65 of 72
Quote:
Originally Posted by GanjaSMK View Post
Just wait until Windows 8 is released with fully capable scheduling that takes advantage of BD and proper parking of cores for power consumption reduction, efficiency gains, proper threading, and maximizes the potential of the chip.

It'll be like OMG sauce.
Yeah, i doubt that.

First of all BD was poised at Windows 7, so saying wait for Windows 8 is not really an excuse... been waiting long enough already.

Message to AMD:

YOU BROKE MY HEART!
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post #66 of 72
Ah but only time will tell. OMG sauce.
    
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post #67 of 72
where are my microcodes, AMD? I need that performance boost that sets apart pre-launch benches from ones that came out today!!

But OH! The stepping! That'll do it! lol
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post #68 of 72
Quote:
Originally Posted by GanjaSMK View Post
Just wait until Windows 8 is released with fully capable scheduling that takes advantage of BD and proper parking of cores for power consumption reduction, efficiency gains, proper threading, and maximizes the potential of the chip.

It'll be like OMG sauce.

Yeah right, like AMD can afford to wait at least another year. If they were really counting on that, they must be absolutely out of their minds, completely bonkers, really.


Tom's Hardware and Madshrimps actually did some tests with the Developer Preview and, for now, the results are not much better, sometimes it doesn't show any difference, sometimes it's worse sometimes a bit better. Core parking works with Windows 8 but the savings were of 8w at idle. Not much to get excited. Further tests with more benchmarks may indicate something better, and possibly a further version of Windows 8, like Beta or RC, but for now, it doesn't really catch up to the 2500k.


Madshrimps review:

Quote:
I also did some multithreaded tests to compare Windows 7 versus Windows 8. The task scheduler in the latter is more optimised for multi core CPUs. Yet my finding were not that shocking in my test suite. 1-4% difference was maximum spotted. Nothing that would give the Scorpius platform that required significant boost.

Edited by tpi2007 - 10/13/11 at 3:49am
 
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post #69 of 72
Quote:
Originally Posted by pioneerisloud View Post
I would like to share this post with you guys.

This shows that there is something seriously wrong software wise with Bulldozer, and its actually a great chip once you break it down to 4 cores / 4 modules.

I love this part:

Quote:
Originally Posted by omninmo View Post
(...) these gains across the board seem to leave Bulldozer with a bit more IPC than phenom II!

This means, for people willing to turn off 4 of their threads, that bulldozer will NOT SUCK AS HARD as originally intended in gaming and lightly threaded apps (although we are still waiting on gaming benches to confirm!) (...)

So, you would be paying above 2500k money and then get just a little better performance than a much cheaper Phenom II X4 BE.

Also, pioneerisloud, why would this be a software problem ? This could entirely be a consequence of AMD's design decisions. It could be comparable to Hyperthreading's negative effect on the 2600k - it needs an additional 100 Mhz clockspeed and 2 MB extra L2 cache (although the cache may also be to help out in tasks that take advantage of hyperthreading), and in many benchmarks it will lose to the 2500k, just above the i5 2400.

I could also argue that for gaming the best CPU is the 2600k with HT off, and I bet the benchmarks would prove me right. But then again, that is not really the purpose of the chip - you pay more because you do take advantage of Hyperthreading in your workloads and are willing to sacrifice a little performance in some cases.

Having said this, with Bulldozer you are disabling a bit more than Hyperthreading. It sure won't be the world's first 8 core chip that way.



Edit: When I ask if it is a software problem, I'm implying if it can be fixed for the general usage. Of course you can also say that Hyperthreading's negative effects on the i7 2600k are also a result of non-optimzed software that doesn't take it into account, but you simply can't change every individual piece of software to take it into consideration. So, yes, Hyperthreading's problem is a software problem, but there is no single software fix than can be applied in general.
Edited by tpi2007 - 10/13/11 at 8:31am
 
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post #70 of 72
tpi2007 - you make me smile. I was a little less than serious.
    
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