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nVidia clock limits in 3xx drivers


K404
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seems to be a driver bug.

 

when i set clocks higher than 1000 mhz, it will show no higher than 1000 mhz realtime monitoring, but clocks in gpuz will go up. the card also crashes around 1100 mhz which means the clocks get applied.

 

independent setting of shader clock doesn't work

 

dbe.png

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I'm also having trouble breaking the barrier of 1004mhz with drivers 3xx

 

only tested the gtx 560ti and you. both models had problems to pass 1004mhz. I even always runs at 1100MHz by setting 1004mhz even ln2.

 

sorry my bad english. using google translator.

 

capturarui.png

Edited by silva_br
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seems to be a driver bug.

 

when i set clocks higher than 1000 mhz, it will show no higher than 1000 mhz realtime monitoring, but clocks in gpuz will go up. the card also crashes around 1100 mhz which means the clocks get applied.

 

independent setting of shader clock doesn't work

 

http://gpuz.techpowerup.com/12/12/24/dbe.png

 

Score goes up?

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Here's my testing. Same description as W1zz, but no change in score.

 

test995.jpg

 

test1050.jpg

 

test1075.jpg

 

I will load 28x series drivers and re-bench when I can*. Don't know if 1075 will run though, previous testing got me 1050MHz max.

 

*I'm also cooking & eating Christmas dinner tonight :P

Edited by K404
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  • 3 months later...
  • 5 weeks later...

I can Confirm you guys finding here too ! +1 it happened to me a few months ago, running GTX 460 clocks are locked to 999Mhz core even thought it can run 1060Mhz on older drivers, with drivers newer than 301.xx overclock is locked and limited by this new drivers to 999Mhz , also tested a few more cards as stated by CN (GT 430 , GT520 etc....) they are locked too. I think this limit impose by the NVidia drivers is hindering the performance for a lot of people :/

Edited by chispy
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Oh, FINALLY :P My find is being taken seriously.

 

It is this simple:

 

 

If someone uses FERMI SILICON with nVidia 300-series drivers, thery are capped at 999MHz core.

 

I say Fermi SILICON because the GT630 uses GF108. Because it is 6-series, it needs 300-series drivers- so the MHz cap is there.

 

OLDER cards- GT2xx are NOT affected. It is Fermi ONLY.

 

There is your newspost :P

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