Last month I published benchmarks showing Windows 8 beating Ubuntu Linux when it came to the Intel OpenGL performance for the latest generation Intel "Haswell" desktop processors. Since then there's been lots of commits to Mesa and continued improvements to the Linux kernel and for some tests the open-source Linux driver is in better standing. For the testing today is a comparison of Windows 8 Pro against the latest Ubuntu 13.10 development packages when using a System76 Gazelle Professional laptop with Core i7 4900MQ CPU.