Radeon Mobility X600:
Supports shader model 2.
640x480: 16 fps lowest, 41 fps highest, 32 fps average
800x600: 11 fps lowest, 27 fps highest, 22 fps average
1024x768: 5 fps lowest, 18 fps highest, 14 fps average
640x480: 18 fps lowest, 41 fps highest, 40 fps average
800x600: 10 fps lowest, 28 fps highest, 25 fps average
1024x768: 8 fps lowest, 18 fps highest, 17 fps average
On this card, there is a small overall improvement at all resolutions.
The biggest performance difference is the full screen shader that activates when the player is hit. In Demo A, this can cause slowdown very near the minimum recorded speeds. In Demo B at 768p, this shader only causes a 5-fps dip.
Both demos are entirely playable at VGA resolution. Demo B is tolerable at 600p.
Seeing this old p.o.s. pull all this off at about 30fps makes me smile. This laptop's video card is far below even the lowest you can buy preinstalled in store shelf systems. I feel on even the lowest modern computer Construct should run at a steady, playable clip as high as 720p widescreen.