hi AMD E-350 testing with a Acer JE40_BZ and AMD Radeon HD 6310 256MB on Fedora 16 (Verne) via the Phoronix Test Suite. -O3: Processor: AMD E-350 @ 1.60GHz (2 Cores), Motherboard: Acer JE40_BZ, Chipset: AMD Family 14h Root Complex, Memory: 2048MB, Disk: 320GB TOSHIBA MK3265GS, Graphics: AMD Radeon HD 6310 256MB (492/533MHz), Audio: ATI Wrestler HDMI Audio, Network: Atheros AR8151 v2.0 Gigabit + Atheros AR9287 Wireless OS: Fedora 16 (Verne), Kernel: 3.2.13-EKOPath (x86_64), Desktop: LXDE, Display Server: X Server 1.11.4, Display Driver: fglrx 8.95.3 Catalyst 12.1, OpenGL: 4.2.11566, Compiler: GCC 4.6.3 20120306 + Open64 5.0 + PathScale 4.0.12.1 + Clang 3.0 + LLVM 3.0, File-System: btrfs, Screen Resolution: 1366x768 -Ofast: Processor: AMD E-350 @ 1.60GHz (2 Cores), Motherboard: Acer JE40_BZ, Chipset: AMD Family 14h Root Complex, Memory: 2048MB, Disk: 320GB TOSHIBA MK3265GS, Graphics: AMD Radeon HD 6310 256MB (492/533MHz), Audio: ATI Wrestler HDMI Audio, Network: Atheros AR8151 v2.0 Gigabit + Atheros AR9287 Wireless OS: Fedora 16 (Verne), Kernel: 3.2.13-EKOPath (x86_64), Desktop: LXDE, Display Server: X Server 1.11.4, Display Driver: fglrx 8.95.3 Catalyst 12.1, OpenGL: 4.2.11566, Compiler: GCC 4.6.3 20120306 + Open64 5.0 + PathScale 4.0.12.1 + Clang 3.0 + LLVM 3.0, File-System: btrfs, Screen Resolution: 1366x768 -Ofast -march=native: Processor: AMD E-350 @ 1.60GHz (2 Cores), Motherboard: Acer JE40_BZ, Chipset: AMD Family 14h Root Complex, Memory: 2048MB, Disk: 320GB TOSHIBA MK3265GS, Graphics: AMD Radeon HD 6310 256MB (492/533MHz), Audio: ATI Wrestler HDMI Audio, Network: Atheros AR8151 v2.0 Gigabit + Atheros AR9287 Wireless OS: Fedora 16 (Verne), Kernel: 3.2.13-EKOPath (x86_64), Desktop: LXDE, Display Server: X Server 1.11.4, Display Driver: fglrx 8.95.3 Catalyst 12.1, OpenGL: 4.2.11566, Compiler: GCC 4.6.3 20120306 + Open64 5.0 + PathScale 4.0.12.1 + Clang 3.0 + LLVM 3.0, File-System: btrfs, Screen Resolution: 1366x768 Himeno Benchmark 3.0 Poisson Pressure Solver MFLOPS > Higher Is Better -O3 .................. 246.73 |================================================ -Ofast ............... 245.63 |================================================ -Ofast -march=native . 245.49 |================================================