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[Xbitlabs] AMD Shows Off Opteron "Interlagos" Again: No Performance Benchmarks... - Page 11  

post #101 of 139
Wasn't that 50% performance number being thrown around a misinterpretation of what John Fruehe actually said? By that token isn't the 35% figure also based on a misinterpretation of what John Fruehe actually said?

Didn't JF-AMD (aka John Fruehe) spend something like 3+ spending the majority of his time on the forums trying to correct the misconception that the 50% performance number was wrong? By that token then isn't the 35% performance number wrong?

I would strongly recommend people looking for actual information to take this xbit labs article with a truckload of salt... seeing is (from what I remember) its still getting distilled from the original 50% performance number.

this whole 35% thing with 33% more cores is most likely hogwash. I don't (nor likely 99.9999% - aside from JF-AMD) have any idea how Bulldozer will perform. AMD is doing well at keeping such figures from the microprocessor tabloid websites, and such websites will keep churning things out to feed their rabid fanbase (myself included) something till we actually get concrete information.

If you have some time I would suggest you read through JF-AMDs posts on this forum and others as it has more truth within than some of these "news" articles
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post #102 of 139
Quote:
Originally Posted by amay200 View Post
Wasn't that 50% performance number being thrown around a misinterpretation of what John Fruehe actually said? By that token isn't the 35% figure also based on a misinterpretation of what John Fruehe actually said?


exactly my point


if one number is totally out of context ... how can we expect the other numbers to not be taken out of context too
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post #103 of 139
Quote:
Originally Posted by 996gt2 View Post
Here is the big issue with that drawing. When you look at it, you MUST consider the importance of core count.

For example, look at Istanbul vs. Magny-Cours. Looks impressive, right?

But consider that Istanbul is 6-core while Magny-Cours is up to 12 core. The increase in performance is EXPECTED from the increase in core count, even if there is little to no change in IPC.

Now consider that Magny-Cours is 8/12 core, while Bulldozer will have up to 16 cores. The predicted increase in integer performance can almost entirely be attributed to the 33% rise in core count.

The predicted increase in FP performance seems overly optimistic, and I'm skeptical of its accuracy. Istanbul and Magny-Cours are built on very similar architectures, yet AMD claims > 2x increase in FP performance going from 6 core Istanbul to 12 core Magny Cours. If that's the case, then they would be able to claim a similarly large increase in FP performance going from 12 core Magny Cours to 16 core Bulldozer even if the architecture was unchanged.

See the problem here?
The FP performance is around 2x according to that graph going from magney cour to BD, even though its 33% more cores not 100%, and it is a different achitecture, so I dont see the problem?

Quote:
Originally Posted by ecnelitsep View Post
On water. I don't see 5ghz happening with air especially with a 130W TDP
Funny how SB can do 5ghz on air, but BD won't with a similar process?

Quote:
Originally Posted by ecnelitsep View Post
Youd be surprised how many guys run 5Ghz on air
....Funny how that's someone else, and not you!!! PMSL Mr 4Ghz SB! LMAO!
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post #104 of 139
Yay for the typical Intel & Amd fans arguing in every bulldozer thread when the haven't even see results yet!
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post #105 of 139
anyone else feeling uneasy about BD?
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post #106 of 139
with only 16mb cache for a 16 core processor thats not impressive at all...at the end of the day cache matters more then the cores themselves for the differences over each additional core to be fully recognized...
post #107 of 139
Quote:
Originally Posted by deltree View Post
with only 16mb cache for a 16 core processor thats not impressive at all...at the end of the day cache matters more then the cores themselves for the differences over each additional core to be fully recognized...
yes it sucks ...


only 16MB of L3 cache


how does cache affect everything without a full diagram of the architecture???

ohh wait you wouldnt know about that
Edited by Fr0sty - 8/6/11 at 4:34am
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post #108 of 139
Quote:
Originally Posted by purpleannex View Post
Funny how SB can do 5ghz on air, but BD won't with a similar process?



....Funny how that's someone else, and not you!!! PMSL Mr 4Ghz SB! LMAO!
Llano needs 1.7v and LN2 for 4.2Ghz yet you expect BD to cruise to 5Ghz as easy as sandy bridge?

As for my chip. 4Ghz daily, 4.6 for benching. When you have amazing ipc you don't need lots of cores and clock speed but its not like you'd know anything about that with that thuban.
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post #109 of 139
Quote:
Originally Posted by ecnelitsep View Post
Llano needs 1.7v and LN2 for 4.2Ghz yet you expect BD to cruise to 5Ghz as easy as sandy bridge?
This is completely untrue. It hit 5 GHz with 1.7v and LN2, and that's only because it has a low, locked multiplier. The guy who OC'd it had to raise the bclk from 100 MHz to 174 MHz. It's like trying to OC a Phenom II using just the bclk, and try to get the bclk at 348 MHz. It's not possible to get the bclk that high with regular cooling... but you can get the same OC with less voltage with an unlocked multi. Just wait for the Black Edition.

It's a completely different architecture anyway. BD is designed for high clocks.

Quote:
As for my chip. 4Ghz daily, 4.6 for benching. When you have amazing ipc you don't need lots of cores and clock speed but its not like you'd know anything about that with that pos thuban.
Why have less when you can have more?
Edited by Usario - 8/6/11 at 12:16pm
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post #110 of 139
Quote:
Originally Posted by JF-AMD
Desktop performance = speed. Server performance = throughput. That is like saying "my car can tow a 4000 pound boat, so it must be able to reach 150 mph."
post #2058

because some people may still not understand.

Remember this whole 35% with 33% means nothing to most of us. Don't worry about doom and gloom articles based on server products which in turn forecast performance on desktop.
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