At the request of many Phoronix readers here are the updated benchmarks comparing the performance of several NVIDIA GeForce graphics cards under Ubuntu 14.04 Linux to Windows 8.1 with all of the latest updates for each operating system. While the NVIDIA graphics driver code-base is largely shared between platforms, many Linux gamers will be pleased to note that the Linux performance has begun advancing beyond the frame-rates offered under Microsoft Windows."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips