ATI HD2400 Core Clock Speed

I was wondering why my Mobility Radeon HD2400 lacks so much behind the desktop version in performance. I checked the Core Clock Speed, and the desktop version should run at 700 Mhz (at least the HD2400 XT) while my Mobility version (HD2400 XT) runs at 300 Mhz.

So no wonder it has worse performance.

My question is it decided by ATI or by the notebook manufacturer to lower the frequency of the Mobility version, even though I am running on AC power? I can very much understand and appreciate the reasons behind lowering frequency when running on battery.

It is not a setting thing that I know, because I have set graphical performance to be maximum performance while on AC power in power settings.

Is there a way to inrease the core clock speed? I know overclocking can damage the graphics hardware, but would it be overclocking in this case if I set the Mobility's clock to match that of the desktop version? As far as I know the only difference between the two is the addition of power saving features in the Mobility version.

 

1. Laptop GPU's will always be lower performance than their desktop counterparts.

2. The manufacturer has the right to determine what the "stock" clocks will be and they will set them lower since they have to worry about heat and power restrictions that desktops don't really need to worry about.

3. It will be OCing if you change the clocks over the manufacturer's stock settings but the chance of damaging your hardware is nil if you follow guide directions.

4. Chances are you won't be able to set the speed equal to the desktop 2400 since they will usually use lower voltages for mobility parts, thus limiting the stability at higher speeds.

5. Best tool for OCing ATI cards is using ATI Tool, version .27 beta 4 is the only one I've found that actually holds your clocks (for the R600 series and up and this is driver level OCing, the clocks will return to normal after a reboot).

Post back if you have any other questions.