NVIDIA has released an upgrade to their new feature driver for Linux. This update reduces frame stutter in some KDE systems that use GSP offload.
Linux x64 (AMD64/EM64T) Display Driver | 555.58.02 | Linux 64-bit | NVIDIA
Updated glXWaitVideoSyncSGI() to be more efficient. This reduces frame stutter in some KDE configurations with GSP offload.
Linux x64 (AMD64/EM64T) Display Driver | 555.58.02 | Linux 64-bit | NVIDIA