strange core clocks with GTX

[Corporate Thug]

i used coolbits to auto detect my optimal frequencies and it was set to 491/1350

i run 3dmark and it shows it do 529:

http://service.futuremark.com/servlet/I...tails&projectType=12&projectId=1262061

why the difference?

 

[SickBeast]

Clock throttling depending on temperature?

 

[Corporate Thug]

Originally posted by: SickBeast
Clock throttling depending on temperature?

i dont get it, why would throttling make it faster?

 

[SickBeast]

Originally posted by: Corporate Thug

Originally posted by: SickBeast
Clock throttling depending on temperature?

i dont get it, why would throttling make it faster?

Oh, actually, they downclock in 2D mode to save electricity and to output less heat. You don't need horsepower in 2D. 😛

 

[Corporate Thug]

i clocked it to 490 in 3d mode but 3d mark shows 529

 

[rise]

mine does the same. the highest i've benched is 500/1300 and the ORB reads it 545/1300 or something (i forget the ram)

someone will be by to explain it better than i can 🙂

 

[Polish3d]

I believe it actually upclocks when max performance is needed...the 460mhz upclocked to 500 for me, at 480 it upclocks to 515... I wonder how ATI will compare because most people do the 430x24pp calculation but in reality it should be more like ~500x24...maybe

 

[chinkgai]

Originally posted by: Frackal
I believe it actually upclocks when max performance is needed...the 460mhz upclocked to 500 for me, at 480 it upclocks to 515... I wonder how ATI will compare because most people do the 430x24pp calculation but in reality it should be more like ~500x24...maybe

no it doesnt "upclock"

try looping a benchmark in 03 or 05 at 515 to verify.

 

[Kovie]

http://www.guru3d.com/newsitem.php?id=2827

The 7800 series uses different internal clocks for some parts within the chip. The core/memory is at its said levels, its just some other part of the core is clocked 40mhz faster and for some reason its the data that always seems to be read by some programs. It does underclock for 2d, but thats completely different from this.

 

[Polish3d]

Originally posted by: chinkgai

Originally posted by: Frackal
I believe it actually upclocks when max performance is needed...the 460mhz upclocked to 500 for me, at 480 it upclocks to 515... I wonder how ATI will compare because most people do the 430x24pp calculation but in reality it should be more like ~500x24...maybe

no it doesnt "upclock"

try looping a benchmark in 03 or 05 at 515 to verify.

Read the guru3d article, thats what I mean

 

[chinkgai]

oh, yes i read about this on anandtech too awhile ago

i forgot what the conclusion was...maybe like that guru3d link...about them shooting off an email to nvidia or something

anyhow, i dont think that jump is really anything signficant...cuz i sure as hell cant come close to artifact testing 40mhz more than what im clocked at

 

[Polish3d]

Thats because it jumps another 40mhz


It's not like if you clock at 430 and it jumps to 470 ,

then you raise core to 470 and test you're still at 470, you'd actually be at 510 or so

 

[chinkgai]

well, thats just one of the multiple clocks.

your primary clock is still whatever u set it to.

 

[Mingon]

Its thought currently that the part of the 7800 which runs faster is the vertex shaders and maybe the ROP's.