Dell Intel Core 2 Duo E4400 testing with a Dell 0KP561 and XFX AMD Radeon HD 6670/7670 2048MB on Ubuntu 14.04 via the Phoronix Test Suite. Open Source Driver: Processor: Intel Core 2 Duo E4400 @ 2.00GHz (2 Cores), Motherboard: Dell 0KP561, Chipset: Intel 82G33/G31/P35/P31 + ICH7, Memory: 4096MB, Disk: 160GB Seagate ST3160815AS + 100GB Western Digital WD1000BEVS-2, Graphics: XFX AMD Radeon HD 6670/7670 2048MB, Audio: Analog Devices AD1984, Monitor: SE40FH03, Network: Broadcom NetLink BCM5787 Gigabit PCI OS: Ubuntu 14.04, Kernel: 3.13.0-24-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.1, Display Driver: radeon 7.3.0, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1920x1080 PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better Open Source Driver . 460 |===================================================== RAMspeed SMP 3.5.0 Type: Average - Benchmark: Integer MB/s > Higher Is Better Open Source Driver . 3013.89 |================================================= RAMspeed SMP 3.5.0 Type: Average - Benchmark: Floating Point MB/s > Higher Is Better Open Source Driver . 3321.14 |================================================= C-Ray 1.1 Total Time Seconds < Lower Is Better Open Source Driver . 124.41 |================================================== Apache Benchmark 2.4.7 Static Web Page Serving Requests Per Second > Higher Is Better Open Source Driver . 6726.22 |=================================================