video test AMD Athlon II X4 638 testing with a MSI A55M-P33 (MS-7786) v1.0 and Sapphire AMD Radeon R7 200 1024MB on LinuxMint 17.1 via the Phoronix Test Suite. Sapphire AMD Radeon R7 200: Processor: AMD Athlon II X4 638 @ 2.70GHz (4 Cores), Motherboard: MSI A55M-P33 (MS-7786) v1.0, Chipset: AMD Family 12h Root Complex, Memory: 4096MB, Disk: 250GB Seagate ST3250310AS, Graphics: Sapphire AMD Radeon R7 200 1024MB, Audio: ATI R6xx HDMI, Monitor: SMB2330H + SMB2330H, Network: Realtek RTL8111/8168/8411 OS: LinuxMint 17.1, Kernel: 3.13.0-37-generic (x86_64), Desktop: Cinnamon 2.4.7, Display Server: X Server 1.15.1, Display Driver: fglrx 13.35.5, OpenGL: 4.3.12798, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1920x1080 1080p H.264 Video Playback 1.1 Video Decoding: OS X CoreVideo Percent Sapphire AMD Radeon R7 200 . MIN: 0.3 AVG: 1.6 MAX: 7.5