Thinking of getting a 570 GTX

[ThomasTheTankEngine]

I find this a bit strange. I get a framerate of a constant 60fps with everything as high as it will go, 8x MSAA, 16x AF at 1920 x 1080. Obviously that's with Vsync on, too. I have a 5850 overclocked to around 5870 stock speeds and a 2500k at 4.4Ghz. I doubt your CPU can be letting you down but honestly it's silky smooth on my 5850.

Yeah, I can't say I noticed performance issues in bc2 when I only had one card. Quite the opposite in fact... if I spammed smoke grenades people would complain about framrate dropping, whilst mine stayed rock solid.

 

[Mr Krugga]

So I've got the exact same graphics card at 805/1080 MHz at 1155mV now, custom BIOS with overclocking limits set to 1050/1300 so no need to use 2d/3d profiles with Afterburner (which I would need otherwise).

BFBC2 and Vietnam couldn't be smoother, default CCC settings, 4xAA/16xAF and everything else turned on (except V-sync, my monitor does 76Hz natively so no tearing in most games).

EDIT: using Catalyst 10.12 and Catalyst Application Profiles 10.12 if that's of any matter.

 

[BS Dave]

I'm at work now but will reply to you in a bit mr krugga - am interested in what you have done with your bios...

 

[Mr Krugga]

I'm at work now but will reply to you in a bit mr krugga - am interested in what you have done with your bios...

I used the stock BIOS and changed the overclocking limits to 1050/1300. That's it, no other changes to the BIOS itself, I think even the hashes match for both.

It technically voids the warranty though, you'd need to reflash with the old BIOS when RMAing.

 

[BS Dave]

so your overclock is at stock? or do you add more volts via afterburner with the overclock set in ccc?

 

[Banny]

That 5850 should fly in BC2, my mate has one, which is mated to an inferior phenom quad black edition, none of them clocked, he plays same rez as you and it runs fine maxed out.

 

[BS Dave]

i may have a go at turning some settings up when i get home - i suppose it might be possible with settings turned down - as it is currently - it's rendering ahead too much and making it look jumpy...

 

[Mr Krugga]

so your overclock is at stock? or do you add more volts via afterburner with the overclock set in ccc?

All my new BIOS does is unlock the overclock abilities of the card to 1050/1300 MHz on core/memory. You can still control the voltage using Afterburner and there's no need for unofficial unlocking via software methods.

That allows you to maintain standard PowerPlay capabilities of the card without using Afterburner's 2D/3D Profiles. It solved a few problems I had with overclocking this card, it's still a very poor overclocker but what I achieve as a stable overclock, the card maintains as a stable overclock with no crashes in any scenarios.

The only drawback is voiding the warranty as you're using a different BIOS but I doubt it can be detected as the hash version is the same as the original BIOS and if the card fails totally, they wouldn't know the BIOS version anyway. If it doesn't you can still flash it as long as it powers up and you have a second card for display. I have two R5850s so the risk is minimal.

Regarding BFBC2 performance, make sure that you use the latest 10.12 drivers and Catalyst Application Profiles. Besides that, reset CCC settings to factory default. From my experience, you should maintain high framerate even with 8xAA/16xAF and everything else on max settings at this resolution. Turn the V-sync off to see if it makes any difference.