Intel Linux OpenGL Driver Remains Slower Than Windows
Intel Sandy Bridge on Linux was slightly slower than the Windows driver performance while under Ivy Bridge this Linux configuration was slightly faster than Windows 7 for OpenArena 0.8.8. Using Unity/Compiz on Ubuntu 12.10 continued to deliver much lower frame-rates than with KDE and at a much greater disadvantage compared to Windows for both Intel graphics generations.
For Unigine Heaven there is just the Windows 7 numbers since the Intel Linux support for this more demanding game engine isn't in great shape on Mesa.