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[AMD] OR-B3 Bulldozer Stepping Listed in Family 15h Kernel Developer's Guide - Page 4

post #31 of 72
Quote:
Originally Posted by Dmac73 View Post
Trolling aside, technically, current BD core is right on par with a Phenom 1 core clock for clock. Obviously we don't have to go into detail how BD is still a hundreds time better, i shouldn't have to argue that later on. Just a technical point


Too soon?


Anyways, I really hope the stepping fixes a lot of the problems, including... but not limited to:
  1. Power draw
  2. Overclocking
  3. IPC
  4. Cache Speed
  5. cpuNB performance
    
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post #32 of 72
Quote:
Originally Posted by BallaTheFeared View Post


Too soon?


Anyways, I really hope the stepping fixes a lot of the problems, including... but not limited to:
  1. Power draw
  2. Overclocking
  3. IPC
  4. Cache Speed
  5. cpuNB performance
Better thread management too. I'd like to see complete shut down of clusters 1,3,5, and 7, unless the processor needs all those threads. No reason to sacrifice even more IPC by leaving threads idling(and still sharing resources) for desktop, web browsing, and even gaming use.
But what do i know, i'm not an engineer. You'd think AMD would have done this, but then again maybe it will be implemented in Turbo Core 3.0 with PD.

We'll see.
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post #33 of 72
Quote:
Originally Posted by Dmac73 View Post
Better thread management too. I'd like to see complete shut down of clusters 1,3,5, and 7, unless the processor needs all those threads. No reason to sacrifice even more IPC by leaving threads idling(and still sharing resources) for desktop, web browsing, and even gaming use.
But what do i know, i'm not an engineer. You'd think AMD would have done this, but then again maybe it will be implemented in Turbo Core 3.0 with PD.

We'll see.
Actually this is the main issue. Everything else would melt away if the dynamic turbo functioned properly. Can this be fixed on the OS side or is it a fundamental flaw?
post #34 of 72
Quote:
Originally Posted by TFL Replica View Post
Actually this is the main issue. Everything else would melt away if the dynamic turbo functioned properly. Can this be fixed on the OS side or is it a fundamental flaw?
OS thread scheduling and chip based thread management are different. Anyways, what i said would allow for a atrue "Turbo" mode. It would help power usage, increase IPC, and when you need 8 cores you'll have have that 8 threaded power, and most importantly to AMD, it would be great for marketing.
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post #35 of 72
Quote:
Originally Posted by Dmac73 View Post
OS thread scheduling and chip based thread management are different. Anyways, what i said would allow for a atrue "Turbo" mode. It would help power usage, increase IPC, and when you need 8 cores you'll have have that 8 threaded power, and most importantly to AMD, it would be great for marketing.
That's how it should have been. There's a lot of untapped potential (that may never be reached this generation) because of this.
post #36 of 72
Quote:
Originally Posted by BallaTheFeared View Post


Too soon?


Anyways, I really hope the stepping fixes a lot of the problems, including... but not limited to:
  1. Power draw
  2. Overclocking
  3. IPC
  4. Cache Speed
  5. cpuNB performance

..Of all of BD's problems, you throw in OCing? How is 4.8ghz on an 8-core a problem? Can a 980X hit 4.8ghz on air? (ok, maybe it can, but not as easily as BD).

If BD's IPC can go up, there's really no issue with power consumption, since it's only about 25W higher than the 980X at 4.5, when it's at 4.6. Basically.. negligible, considering they're both on 32nm and BD has 2B transistors.
 
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post #37 of 72
Quote:
Originally Posted by jrbroad77 View Post
..Of all of BD's problems, you throw in OCing? How is 4.8ghz on an 8-core a problem? Can a 980X hit 4.8ghz on air? (ok, maybe it can, but not as easily as BD).

If BD's IPC can go up, there's really no issue with power consumption, since it's only about 25W higher than the 980X at 4.5, when it's at 4.6. Basically.. negligible, considering they're both on 32nm and BD has 2B transistors.
I don't care too much about power draw either. Afterall, what good is my silver arrow without 125w TDP chips anyway?... But do you know what forum you're on? It only overclocked about as well as sandy bridge safely (slightly worse?), it should be better! BETTER!
 
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post #38 of 72
Why are you rolling your eyes at me?

The reason I tossed in overclocking is because Bulldozer's IPC is so low it requires much greater clock speeds to make up for it. For instance clock for clock against even a modest i5-2500k the 8150 is about the same in multithreading win some, lose some, pretty close all around.

990x is a last gen product, but to be fair it's also quite a bit faster than a 4.8GHz bulldozer cpu, while using less power.

AMD needs to dink with everything, they can't simply focus on getting the IPC up, they need to get power down, overclocking up, and IPC up as well, improvements in each will make a bigger difference than just focusing on one area.

I wouldn't run a 5GHz water cooled bulldozer chip on your system, with a 500watt power supply, that's how bad it really is.
    
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post #39 of 72
Quote:
Originally Posted by sLowEnd View Post
B3 to fix Phenom I TLB
B3 fix for Sandy Bridge chipsets

B3 B3 B3
B3,PCI-E 3,USB 3.0?
Lol.
Quote:
Originally Posted by finalturismo View Post
This reminds me when the first phenoms came out, they sucked too.
Than the next revision came and they actually had a chance against intel's q6600.
Phenom I didn't suck,it just didn't overclock well.
Quote:
Originally Posted by TFL Replica View Post
Actually this is the main issue. Everything else would melt away if the dynamic turbo functioned properly. Can this be fixed on the OS side or is it a fundamental flaw?
Phenom II has dynamic turbo core,so why shouldn't BD have dynamic turbo? Possible issue fixed with the B3 stepping?
Edited by Heavy MG - 10/16/11 at 12:25am
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post #40 of 72
Quote:
Originally Posted by BallaTheFeared View Post
Why are you rolling your eyes at me?

The reason I tossed in overclocking is because Bulldozer's IPC is so low it requires much greater clock speeds to make up for it.


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