The graphics chipset actually performs pretty well. We also optimized it in
Libreboot; LenovoBIOS allocates 32MiB of Video RAM only.
The chipset itself supports 256MiB VRAM allocation, but factory BIOS doesn't
do it.
Libreboot does :)
In the recent Libreboot releases, based on Intel datasheets, we made 256MiB
VRAM the default. This should improve the performance a lot, and things like
video decoding/encoding work very well now. Certain games which use a lot of
Video RAM should also perform better in the latest Libreboot releases.
I play games sometimes and most games run well on my T400. I also regularly
stream 1080p videos and they play smoothly without any lag.
