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post #101 of 130
It will be interesting to see how well this work in non threaded applications, seems in theory it would be pretty decent boost.
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post #102 of 130
Quote:
Originally Posted by pietro sk View Post
SB´s turbo is very important "bent-marketing" feature, just watch lower SB cpus without turbo, or models with weaker turbo.


bulldozer will have nexgen turbo, so there i also expect some bent-marketing
(it will be fun watching these two in tests)
Last I checked Phenom II also has turbo mode.

Also last I checked SB chips are getting a sustained -bigadv PPD of around 50k with a 4.9GHz overclock.

Either you're wrong about Intels Turbo, or F@H is so bias that it reads 4.9GHz Intel Model /w HT and automatically changes the PPD and TPP based on the CPUID.



Quote:
Originally Posted by JF-AMD View Post
The point I was making was that if you had an 8-core processor and wanted to run a 4-thread app, then having 2 modules gated off would probably give you better overall performance (due to Turbo CORE) than trying to run all modules with one thread on the module.

I was not saying buy an 8-core if you think you will never need more than 4 cores. Just buy a 4-core BD.

Sorry for the confusion JF.

So if I understand this right, BD "Turbo CORE" feature works off how many modules are active, not how many threads are active per module? So turbo core will work better if two threads are run on 1 module allowing higher power gating with 3 inactive modules, whereas running two threads on two modules will only allow power gating for two of the other modules being shut down?
Edited by BallaTheFeared - 4/11/11 at 6:04pm
    
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post #103 of 130
Correct. But you can get up to 500MHz with all the cores active. More with some inactive.
post #104 of 130
Quote:
Originally Posted by JF-AMD View Post
Correct. But you can get up to 500MHz with all the cores active. More with some inactive.
Is this with Bulldozer? Because I seem to recall 500MHz was the max on Thuban with 3 cores active.
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post #105 of 130
I always thought hyper thread didn't make a difference in games too until I saw the crysis 2 benchmarks with an i3-530.The fps difference was huge with hyper thread disabled.
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post #106 of 130
Quote:
Originally Posted by rui-no-onna View Post
Is this with Bulldozer? Because I seem to recall 500MHz was the max on Thuban with 3 cores active.
yes, that was a BD statement
post #107 of 130
Quote:
Originally Posted by JF-AMD View Post
yes, that was a BD statement
Just fishing here, its probably under NDA..

Any word on stock clocks, VID range, or TDP?
    
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post #108 of 130
Quote:
Originally Posted by rui-no-onna View Post
Is this with Bulldozer? Because I seem to recall 500MHz was the max on Thuban with 3 cores active.
Quote:
Originally Posted by JF-AMD View Post
yes, that was a BD statement
Bear in mind these are official stock clocks, my 1090T has 400Mhz turbo at stock (3.6Ghz) on 3 cores, but will happilly run a 1000Mhz turbo (4.2ghz) on stock vcore. This is all on 45nm with phenom architecture.

So it will be interesting to see what BD can do once you exceed the stock clocks, bearing in mind they promise 500Mhz on 8 cores (or 16).
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post #109 of 130
Quote:
Originally Posted by purpleannex View Post
Bear in mind these are official stock clocks, my 1090T has 400Mhz turbo at stock (3.6Ghz) on 3 cores, but will happilly run a 1000Mhz turbo (4.2ghz) on stock vcore. This is all on 45nm with phenom architecture.

So it will be interesting to see what BD can do once you exceed the stock clocks, bearing in mind they promise 500Mhz on 8 cores (or 16).
Turbo core can be adjusted to a clock that high? So i can have a 3.6Ghz OC with a turbo of 4Ghz?
I had the assumption in which the CPU,or the BIOS that supports the Turbo Core feature could only handle 500Mhz over the stock clocks.
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post #110 of 130
Probably board dependent, but yeah, I can set my turbo multiplier to what ever it will run at, I have a seperate multiplier for it. Never tried setting something like 4.5Ghz Turbo, with maybe 4ghz on all cores, I don't think my cpu would be stable, I settled for 3.5Ghz with 4.2ghz turbo because it runs at that on stock settings, and I really can't tell any difference to when I was running all the cores at 4.2Ghz - except it now runs cooler.

Try it.
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