Intel 82Q35 perfomance really horrible, limitation of the hardware?
I have an old ofice PC (HP dc7800) with a core 2 duo@3GHz and an 82q35 graphics chip in the northbridge. I don't think it has dedicated video memory so that is ontop of that. I added to the dc 7800 a "PCI-E x16 DVI Video Card Silicon orion" which is just a tmds encoder chip and DVI port.
Anyhow, performance is pretty bad with the limited tests I ran. I started with gnome-ubuntu (gnome-shell) and that was horrible slugish. The goal was to have a dedicated xbmc htpc. But xbmc ran at a framerate of 5-10 fps.
Trying xbmcuntu, which has no signs of compositing, it ran at 10-15 fps, but not stable, it would drop to 3-5 during heavy movement of the menu.
Anyway besdies adding a different videocard to improve performance?
It's a slow chip, it's barely faster than i945 if that says anything to you.
I understand it's a slow chip and I do not expect super high performance, but XBMC doesn't have huge requirements I would have though. Raspberry Pi is a very weak GPU is it not? The Q35 here appears to be even slower then that.
Originally Posted by curaga
The q35 is basically a fixed-function OpenGL 1.4 device with a limited ability to perform small and simple fragment shaders and no hardware vertex shaders or other TnL. Trying to use almost anything GLSL-based is a recipe for disaster and software fallbacks. It is quite a powerful CPU though, and you pay for that in its power draw (even at idle) and cooling requirement - it would not make my shortlist for HTPC! As there is no better software to use, you definitely need a different GPU and I would recommend an alternate CPU and chassis.
Originally Posted by oliver