Desktop mode problem at full resolutiion?

[DGhost]

Using an ATI Radeon 8500 i'm getting some really strange issues...

At 1024x768 @ half resolution in desktop mode, it get 95-100fps solid, using under 5% of the cpu, but if i set it up to full resolution, i get at most 40fps, and around 70% cpu utilization...

at 1280x1024 @ full resolution it does the exact same thing, with the same numbers.

kinda odd. any ideas?

[DemonPunk]

1024x768 is a lot more difficult to process than 512x384.

[Krash]

Exactly. Half resolution = 1/4 workload. Plus it's all being blitted on to your desktop, don't forget.
Count yourself lucky you can use desktop mode at any decent speed at all.

- Krash

[DGhost]

Soo... would blitting it to the desktop cause 1/2 the fps and 3x the cpu utilization of native mode?

[xantus]

i have the same issue with desktop mode.... but im fine with half res... still looks good enough and i get smooth framerates with little to no processor use... :)