Some of our favorite attributes about Fedora 13 is the easy availability of the Nouveau Gallium3D driver (and the classic Gallium3D Mesa driver for NVIDIA's very old hardware), initial support for Btrfs system rollbacks, and its bleeding-edge X.Org/Linux graphics stack. For those interested in screenshots and more details on Fedora 13, see Nearing The Release Of Fedora 13.
Fedora 13 is shipping with X.Org Server 1.8, the Linux 2.6.33 kernel, GCC 4.4, KDE 4.4, and GNOME 2.30, among many other updated desktop and server packages.
Fedora 13 is codenamed Goddard while Fedora 14 is already being called Laughlin. Fedora 14 will be released in late October or November. Fedora 13 will be made available for download shortly at FedoraProject.org. It should not come as a surprise, but soon we will have benchmarks from Fedora 13 final.