Whats a typical ratio for gfx card overclocking?

[caz32]

Hi all,

I'm new to overclocking and I am playing around with my gfx card, it is a nvidia 670 2gb. I am following a guide while doing this and it says to keep increasing the memory clock core until it artifacts then decrease it.

I'm sitting at +62 on my core clock and +700 on my memory. I've ran about 3 benchmarks so far.

1 at 62 500, 1 at 62 600, 1 at 62 700 and have had gains each time (minimal), is this correct?

I can't see any performance hit, temp increase or artifacts and my system seems to be stable at the minute, so do I keep increasing the memory clock?

I'm using the Heaven Benchmark 4.0, at stock my score is: 1565 and with the overclock above at 62, 700 its 1675 with a +4 fps gain.

Thanks

 

[BluD]

Yeah youve got it, typically i do the core first like you did, push that as far as it goes until it starts crashing then knock it back maybe 20-40mhz then push the mem like you did.

Theres no typical overclock ratio, you just get lucky or you dont. I had a 7950 that went from 800/1250 to 1300/1900 for gaming and would bench even higher, then ive had cards that wont overclock more than a few mhz before they start crashing or artifacting.

If you get lucky on the core youll get a good clocker, with the vram its sometimes about getting the right make of chips.

 

[caz32]

Thank you, I'll see how far I can go on the memory. If I push the core clock up it becomes unstable and I don't really want to mess around with the voltage.

 

[BluD]

Do what ever comfortable with, i never had 670 so i dunno what voltage/temp they ran at, but as long as your cooler can handle the temps your ok to up the voltage a little, youll gain a lot more performance from overclocking the core rather than the memory.