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780 ti interesting find

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Tír na nÓg

Member
Joined
Sep 19, 2015
So, I have this 780 ti, [email protected]/7900/1.15v, Geforce 347.xx drivers.

Get a 18800'ish graphic score in 3dm11.
http://www.3dmark.com/3dm11/11346057

Today, I did a bit of trail and error with different drivers, mainly with the 368.39.

The card would not go above 1390MHz: WTF?!? Lost 100MHz OC?!?

So, I ran 3dm11, and... 18700'ish graphic score!
http://www.3dmark.com/3dm11/11369254

Either the readings are wrong with either the previous drivers or the ne ones, or they improved by 7%, which I highly doubt.

All drivers from 330.xx to 355.xx give me the same 1490MHz, while the 365.xx and up give me the same perf, with a 100MHz less.

Have any of you experienced this kind of weird stuff already?
 

ATMINSIDE

Sim Racing Aficionado Co-Owner
Joined
Jun 28, 2012
Pretty typical for drivers to impact overclocking and performance.
 
OP
Tír na nÓg

Tír na nÓg

Member
Joined
Sep 19, 2015
Sure it does, but I think it is more a matter of reading the right frequency than improving performance or impacting overclocking:
+7% performance increase, together with a loss of 7% overclocking headroom, on an old gen EOL GPU? At the same voltage? Mmm..Seems odd!
 

EarthDog

Gulper Nozzle Co-Owner
Joined
Dec 15, 2008
Location
Buckeyes!
Im guessing its something left over in your driver trials causing the anomoly. Drivers do improve performance at the same clocks, but to see 7% difference with as many less clocks, it dkesnt happen like that.
 
OP
Tír na nÓg

Tír na nÓg

Member
Joined
Sep 19, 2015
^I totally agree, that's why I am talking of weird frequency reading.

Not much to left over: benchmark has been run on a clean windows 7 install (imaged after all chipset drivers have been installed).
 
OP
Tír na nÓg

Tír na nÓg

Member
Joined
Sep 19, 2015
Bumping this one: wondering if anyone else experienced the same kind of behaviour.