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[AMD] Turbo Core 2.0 Detail - Page 8

post #71 of 107
... the floating point unit deals with integer processing? Are you sure it's not on the integer ALU (arithmetic logic unit)?

It doesn't have much to do with your statement, but it's kind of the entire point of Bulldozer having a unified FPU and separate integer processing units, that is, that integer processing is generally the more important/frequently used operation of a CPU.

edit: BTW, here's a statement from DarkShikari, writer of x264, about it:
Quote:
About 60-70% of x264's runtime is spent in integer SIMD functions.
http://doom10.org/index.php?topic=514.0
Edited by test tube - 2/1/11 at 9:21am
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post #72 of 107
Bulldozer will eat Sandybridge alive
post #73 of 107
Quote:
Originally Posted by JF-AMD View Post
Beats me, I have never overclocked. I actually underclock some of my systems, I know, heresy in these parts.
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post #74 of 107
Quote:
Originally Posted by Tator Tot View Post
It may be possible on the consumer side of things; but definitely not the server side as you could potentially send energy costs through the roof with that.
Yup, it would be nice for the consumer market.

Energy costs might be justifiable.... If Turbo Core only adjust frequency at the same voltage, power consumption should not go up that much. Running a bit faster for a few minutes to complete a load is usually better than running slower for long. However, it all really depends.
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post #75 of 107
Quote:
Originally Posted by DuckieHo View Post
Now, I'm confused.... so you're saying that this overclock does not care about temperatures at all? The thermal checks are ignored?

That means in a server room with a broken HVAC.... these chips will continue to run at the Turbo clocks even if temperatures are exceeding safe working temperatures?


Now there is also the inverse.... In a cold room and/or with better cooling, your TDP is now the limiting factor. People can control temperature but not TDP.
There will be all kinds of tools available from APML to AMD PowerCap manager.
post #76 of 107
Quote:
Originally Posted by JF-AMD View Post
There will be all kinds of tools available from APML to AMD PowerCap manager.

Oh great.... I now will have to spend days tweaking to get maximum performance.
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post #77 of 107
Like you didn't like to tweak to get the maximum performance Duck eheheh
post #78 of 107
Quote:
Originally Posted by DuckieHo View Post
Oh great.... I now will have to spend days tweaking to get maximum performance.
Um, I am pretty sure you would say that regardless of my answer.
post #79 of 107
Quote:
Originally Posted by JF-AMD View Post
Um, I am pretty sure you would say that regardless of my answer.
Naw.... Intel overclocking today is basically just finding max mulitplier for a given voltage. It is pretty much straight forward for better or worse.

It seems like AMD overclocking will be more granular with possible options for individual core voltages, multiplier, and clock generator. Furthermore, complexity increase with Fusion since integer and floating point stress testing may have to be done seperately.

All speculation, of course.


However, do you understand why I believeTurbo based on thermal is has some advantages over TDP? In theory, the CPU could run closer to the edge of stability rather than an defined TDP limit based on workload. Drop the temps.... better performance automatically.
Edited by DuckieHo - 2/1/11 at 11:15am
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post #80 of 107
Quote:
Originally Posted by DuckieHo View Post
Naw.... Intel overclocking today is basically just finding max mulitplier for a given voltage. It is pretty much straight forward for better or worse.

It seems like AMD overclocking will be more granular with possible options for individual core voltages, multiplier, and clock generator. Furthermore, complexity increase with Fusion since integer and floating point stress testing may have to be done seperately.

All speculation, of course.


However, do you understand why I believeTurbo based on thermal is has some advantages over TDP? In theory, the CPU could run closer to the edge of stability rather than an defined TDP limit based on workload. Drop the temps.... better performance automatically.
You can already do individual clock multipliers, as well as shut off certain cores. The only thing I can't really do is individual core voltages, it's a single core voltage of 1.4 =( It would be hella nice if I could do core voltages and find a way to up the poor cores and keep the good ones at a lower voltage.
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