The driver update of spcharn version 8.911.3.4 includes: spcharn - support for AMD FirePro v3900 Series graphics card. Although AMD's catalyst driver for desktop graphics card is no longer released every month, for professional graphics card, the stability and quality of the driver itself is far more important than the speed of driver update. As a result, the R & D cycle and test cycle of the driver are relatively long. Amd FireGL / firemv / FirePro professional graphics driver 8.911.3.4 for winxp-32 / XP-64 (released on July 3, 2012) spchar due to the different positioning between professional graphics card and ordinary desktop graphics card, professional graphics card is mainly faced with some commercial users and professional users, so the stability of its supporting driver is the most important.