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More Core Clock = Less Points in 3D Heaven - Page 3

post #21 of 25
be aware however any OC at all on a boost card automatically disables to boost function.
post #22 of 25
yeah, as Falcy said, ASIC is a measure of current leakage.

Its debatable what it really means, but according to AMD, a higher ASIC OCs better on air, and a lower ASIC OCs better under water.
post #23 of 25
Thread Starter 
Quote:
Originally Posted by Falcy View Post

It doesn't say that much really.
Lower ASIC cards is often more "leaky". That means you will need more power to achieve a stable O/C. However the ASIC-value is up for debate.

So, high or low ASIC-value has very little to do with the actual final O/C results. I have seen low ASIC-value cards overclock to almost insane levels. And high ASIC-value cards that O/C very poorly. And the other way around aswell...

In my opinion, i choose a lower ASIC card, after what i have seen and also based on my own Sapphire 7950 Vapor-X, that card has a extremely low 59.1% ASIC.
However, that Vapor-X does 1200 on core easy and 1600-1700 on memory.

Since you have the boost version, 1000MHz, i think it is set to 1.25v as default? Atleast my former Gigabyte 1000MHz had 1.25v as default.
So what you need to do is raise the Power limit to +20%. Start there and try it out, it should be enough.

If you leave it to 0 you will, as you have noticed, get a throttling card.

Thanks a lot to all of you, but no matter what i try, i can´t unlock voltage control in MSI afterburner ( already check unlock voltage and read voltage in settings ), can´t do it by editing config file, neither a patch to MSI AB....
In TRIXX, i can change voltage, but the maximum value in VDDC is 1250 ...

Power limit is in +20, the maximum value avaiable.

Its weird, the best result i have in Kombuster or 3D mark in with 1030MHZ Core Clock and 1250MHZ memory clock ....

Well, there are good chips and bad chips, someone has to play with the bad ones frown.gif
Edited by ruiviterbo - 5/19/13 at 5:38pm
post #24 of 25
Quote:
Originally Posted by ruiviterbo View Post

Power limit is in +20, the maximum value avaiable.
Yeah as "standard" it only goes to +20%, in most cases that is however more then enough.
And with standard cooling(not water) i would say that is more then enough.

In your case i don't think you will achieve any better O/C with that set to +40% anyway. Like you say yourself, you received a bad chip.
Quote:
Originally Posted by ruiviterbo View Post

Its weird, the best result i have in Kombuster or 3D mark in with 1030MHZ Core Clock and 1250MHZ memory clock ....
Well, there are good chips and bad chips, someone has to play with the bad ones frown.gif
I had a Gigabyte Windforce before my Sapphire Vapor-X and that Gigabyte could only reach 1090MHz stable.

Also i think Gigabyte has the voltages hardware locked. That means no software can unlock the card.
I don't even think that a firmware update would unlock it, since this stuff is "hardware modded".
Edited by Falcy - 5/20/13 at 2:27am
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i5 gaming
(15 items)
 
  
CPUMotherboardGraphicsRAM
6600k @4.6 Asus Z170 Pro Gaming MSI 1060 Gaming X @2.1/4.8 Corsair DDR4 Vengeance White led 3000 @3.3 
CoolingOSMonitorMonitor
H100i with Noctua IndustrialPPC PWN Windows 10 Pro Epson TW-3200 AOC 144Hz 
KeyboardPowerCaseMouse
CM Storm Quickfire Rapid XFX Pro 750w Antec P280 Corsair Sabre RGB Optical 
Mouse PadAudioOther
fnatic HyperX cloud LAN Intel 219V 
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post #25 of 25
Quote:
Originally Posted by The Mac View Post

yeah, as Falcy said, ASIC is a measure of current leakage.

Its debatable what it really means, but according to AMD, a higher ASIC OCs better on air, and a lower ASIC OCs better under water.
The reason behind this is that the lower leakage there is the less the chip needs current and the less heat is involved as result. Low ASIC has higher leakage and scales better with voltage making them better for water where the heat from overvolting isn't an issue.

None of this has any impact on the OC potential under conventional cooling, that's simply up to the silicon lottery. Naturally when subzero you want low asic which scales better with voltage, but this is an exception.
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