Benchmarks by Michael Larabel of Phoronix.com.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Sapphire AMD Radeon HD 5830 1024MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: EXA
Changed Graphics to HIS AMD Radeon HD 6450/7450/8450 / R5 230 OEM 1024MB.
Changed Graphics to Sapphire AMD Radeon HD 6770 1024MB.
Changed Graphics to Sapphire AMD Radeon HD 6870 1024MB.
Changed Graphics to Sapphire AMD Radeon HD 6950 2048MB.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: XFX AMD Radeon HD 7950/8950 OEM / R9 280 3072MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.1 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: GLAMOR
Changed Graphics to Gigabyte AMD Radeon R9 270X 2048MB.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Intel HD 4600 (1250MHz), Audio: Realtek ALC1150, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: intel 2.99.910, OpenGL: 3.3 Mesa 10.1.0, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: SNA
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Sapphire AMD Radeon HD 5830 1024MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: EXA
Testing initiated at 7 April 2014 15:37 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: HIS AMD Radeon HD 6450/7450/8450 / R5 230 OEM 1024MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: EXA
Testing initiated at 7 April 2014 13:34 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Sapphire AMD Radeon HD 6770 1024MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: EXA
Testing initiated at 7 April 2014 16:03 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Sapphire AMD Radeon HD 6870 1024MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: EXA
Testing initiated at 7 April 2014 15:00 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Sapphire AMD Radeon HD 6950 2048MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: EXA
Testing initiated at 7 April 2014 17:12 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: XFX AMD Radeon HD 7950/8950 OEM / R9 280 3072MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.1 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: GLAMOR
Testing initiated at 7 April 2014 16:46 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Gigabyte AMD Radeon R9 270X 2048MB, Audio: Realtek ALC1150, Monitor: VA2431, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: radeon 7.3.0, OpenGL: 3.1 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: GLAMOR
Testing initiated at 7 April 2014 16:28 by user pts.
Processor: Intel Core i7-4770K @ 3.50GHz (8 Cores), Motherboard: ECS Z87H3-A2X EXTREME v1.0, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 120GB Samsung SSD 840, Graphics: Intel HD 4600 (1250MHz), Audio: Realtek ALC1150, Network: Realtek RTL8111/8168/8411
OS: Ubuntu 14.04, Kernel: 3.13.0-20-generic (x86_64), Desktop: Unity 7.1.2, Display Server: X Server 1.15.0, Display Driver: intel 2.99.910, OpenGL: 3.3 Mesa 10.1.0, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080
Graphics Notes: SNA
Testing initiated at 7 April 2014 17:58 by user pts.