GTX 570/580 Memory Overclocks?

[El_Capitan]

So, the rated memory bandwidth is 5000MHz, but I've never tried to get it up that high. I'm at 4320MHz and it seems like I can go higher on my GTX 570's. Anyone get close? I think I tried 4600MHz and there wasn't an issue for stability, but I don't want to kill something.

[MercuryDoun]

So, the rated memory bandwidth is 5000MHz, but I've never tried to get it up that high. I'm at 4320MHz and it seems like I can go higher on my GTX 570's. Anyone get close? I think I tried 4600MHz and there wasn't an issue for stability, but I don't want to kill something.

 

I got 4864mhz(QDR) outta mine! Ran pretty well but i still would sometimes crash on benchmarks, i didnt get full stability until 4840mhz(QDR). I tell yeah, im really looking forward to getting another GTX570! Its the best overclocking card ive ever had.

[Nyt]

Depend on how intense the bench is . I can sometimes get 4900mhz on a less intense bench . 4750mhz is my sweet spot for stability in heavy benches .

But realistically I only run 24/7 at 850mhz , 1700mhz and 2100mhz (4200mhz) at 85% fan for quietness and coolness since two 580's just plough through games

[El_Capitan]

Thanks, that's good to know. When I kept going up and up without issues, I was getting kind of worried and backed down.

[Praz]

Normally it requires quite a bit of testing to find max memory speed. The memory is self correcting on errors and these errors will usually occur before instability. At this point performance is less then when the memory is at a a lower speed with no errors.

[wevsspot]

Good point Praz.

 

You're memory can be doing it's ECC thing and affecting overall performance and you wouldn't even know it unless things were acting up or you were running benchies and couldn't figure out why benchmarks scores were lower at 4850Mhz versus 4750Mhz.