4GM RAM, intel core i5-2410M (2.3GHz)
Ubuntu 14.10 x86_64
Intel integrated video. Regarding video: even Skyrim works with integrated video, so there is no possibility to complain about its performance.
OpenGL core profile version string: 3.1 (Core Profile) Mesa 10.3.2
Not sure what it builds by default but gdb says debug symbols are loaded, so it either Debug or RelWithDebugInfo.
vcmi from ppa seems to be built at least as RelWithDebugInfo.
However, it seems like my own build uses software rendering or something similar. It feels like 1 frame per several seconds.