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BFG GTX 260 max core OC overclocks.

pieman109

pieman109

pieman109

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Just picked up and installed this thing, all running surprisingly well and was wondering what sort of overclocks I could be aiming for with this. Did a blast on crysis to check temps and never went above 60c and idles at 43c. I don't wanna push it to an inch of its life, just get a nice overclock that shows tangible results.:)
 
The shader clock on most won't go above 1458-1500MHz - but unlinked the core will go upto about 729MHz... if you have (very*) good cooling tho you should be able to get the shader clock up to 1600+ giving you over 775 on the core.

Mine is perfectly stable upto 729/1458 - I've not found the final stable memory clock yet I just run it at 1200Mhz - but its seems to be stable upto just under 1500.

*sky seems to be the limit if you can keep temps to around the idle levels.
 
It will probably max out stable at either 702/1404, 729/1458 or if your lucky and have a very good card 750/1500. Very very few cards will be stable on air on the next shader clock above that.
 
Rroff said:
It will probably max out stable at either 702/1404, 729/1458 or if your lucky and have a very good card 750/1500. Very very few cards will be stable on air on the next shader clock above that.
Click to expand...

Mine in sig... i noticed that I had to increase the shader clock in order to get above 725mhz i think it was. Whats this talk of next shader clocks? Could someone explain for me?:confused:
 
n3x said:
Mine in sig... i noticed that I had to increase the shader clock in order to get above 725mhz i think it was. Whats this talk of next shader clocks? Could someone explain for me?:confused:
Click to expand...


I think its just terminology for the next shader overclock attempted by the user.
 
pieman109 said:
I think its just terminology for the next shader overclock attempted by the user.
Click to expand...

I thought they went up in jumps just like the 8xxx series did? eg you may set a shader clock of 1500 but if you check with rivatuner, the actually shader clock will be a different figure. From memory with the 8xxx cards it used to jump up in 9 or 27Mhz steps.
 
Found this on another forum...

"Shader clock increases ALWAYS with 54Mhz intervals, you need RivaTuner and view it's hardware monitor for *actual* clocks. I'm pretty sure most cards do 1458MHz shader clocks, next real increase is to 1512MHz, and after that 1566MHz. Unlinked, core clock always can be set to max 50% of (ACTUAL) shader clock."
 
Well atm I'm sitting here at 700/1450/1050 clocks, with the fan set to 50%, nice and quiet and temps are good as well hitting 60c load and idling at 45c Appears to be stable in everything I've tried so far and got a real nice boost over the 4870 I had before. Warhead and crysis are a lot smoother, minimum framerates appear to be higher than before and average also are higher, "world in conflict", "wow" got a hammering last night too by me son and what I saw of it, they run real well too. Well pleased with this card so far.:)
 
Yeah the shader jumps in steps of around ~54MHz, and the core can usually only be overclocked to a max of a 1:2 ratio to the shader.

Yeah my number was wrong above its 756/1512 not 1500.
 
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