ATI 6870 not overclocking (Low FPS)

[Bertram W. Wooster]

Noticed the same behaviour with my 4850 - the core clock speed remains at the idle underclock speed of 160MHz throughout the entire game session, confirmed using GPU-Z sensor logging. This doesn't happen with any other games I have tested, just CoD.

I'm running v10.10 of the Catalyst drivers and don't see the force clock speeds option either. However, I was able to force the clock speeds using the ATI Overdrive option in ATI Tray Tools (http://downloads.guru3d.com/download.php?det=733).

Unfortunately, forcing the clock speeds didn't seem to noticeably improve performance.

[Kankkis]

Originally Posted by Bertram W. Wooster

Noticed the same behaviour with my 4850 - the core clock speed remains at the idle underclock speed of 160MHz throughout the entire game session, confirmed using GPU-Z sensor logging. This doesn't happen with any other games I have tested, just CoD.

I'm running v10.10 of the Catalyst drivers and don't see the force clock speeds option either. However, I was able to force the clock speeds using the ATI Overdrive option in ATI Tray Tools (http://downloads.guru3d.com/download.php?det=733).

Unfortunately, forcing the clock speeds didn't seem to noticeably improve performance.

Installed, i don't have even there that option?

[Bertram W. Wooster]

Originally Posted by Kankkis

Installed, i don't have even there that option?

Right-click on the ATI Tray Tools icon in the taskbar and select Hardware | ATI Overdrive 5. For reference, I'm running ATI Tray Tools v1.7.9.1557

[JG301_HaJa]

Sorry but I have to concur on this one. No override in the 11.2 version 64 bit W7 here
either no matter where I look.

On the other hand I don't have the option for individual profiles activated?! Perhaps
one can do it in there?

[oxygenthief]

open the catalyst control centre (im running the latest drivers) click on performance then clock controls, then amd overdrive, you can see your current values at the bottom of the amd overdrive interface,

in order to change anything on this screen you will need to click the little key icon above "enable AMD overdrive" to unlock the interface and allow changes

if you have the benefit of two monitors you will be able to monitor this in game, both my gpu clock and memory clock increase when the game is running and at 890 mhz and 1215 mhz on the ram my performance in game was pretty much unchanged.

the game as others have mentioned is hardly touching the CPU im only using 17% of cpu capacity and only 2 gig of my 6 gig ram is used

[Phazon]

I'll also confirm that AMD PowerPlay (the thing that downclocks AMD cards when they aren't in use) does not work with Cliffs of Dover at all. It is like it does not consider Cliffs of Dover to be a 3D game.

My GPU/Memory clocks registered as 500Mhz/500Mhz using GPU-Z sensor logging. Their normal clocks during 3D gaming are 750Mhz/900Mhz.

Overclocking the clocks using Overdrive in the CCC will not have any effect as it does not disable PowerPlay which is what controls the GPU and memory clocks. Only forcing settings for the clocks using a third-party utility will get around this.

I'm quite annoyed learning about this today. Its clear that this game was not tested with any AMD cards at all. Its time to get out of bed with Nvidia now.

[PzMeyer]

Got similar problems with nvidia card.
First clocks are at normal 3D clocks but suddenly after some time go down to 400 coreclock. I recognized some memory overflow posted in another thread with screenshot.

[Kankkis]

Originally Posted by Bertram W. Wooster

Right-click on the ATI Tray Tools icon in the taskbar and select Hardware | ATI Overdrive 5. For reference, I'm running ATI Tray Tools v1.7.9.1557

Thanks a lot

[JG301_HaJa]

Ah, sorry I didn't notice that youre talking about ATT and assuemed it was about CCC
My bad sorry. I need to install that again