An anonymous reader writes "In a 15-way graphics card comparison on Linux of both the open and closed-source drivers, it was found that the open-source AMD Linux graphics driver is much faster than the open-source NVIDIA driver on Ubuntu 13.04. The open-source NVIDIA driver is developed entirely by the community via reverse-engineering, but for Linux desktop users, is this enough? The big issue for the open-source 'Nouveau' driver is that it doesn't yet fully support re-clocking the graphics processor so that the hardware can actually run at its rated speeds. With the closed-source AMD Radeon and NVIDIA GeForce results, the drivers were substantially faster than their respective open-source driver. Between NVIDIA and AMD on Linux, the NVIDIA closed-source driver was generally doing better than AMD Catalyst."