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: 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
Changed Graphics to Sapphire AMD Radeon HD 6870 1024MB.
Changed Graphics to Sapphire AMD Radeon HD 5830 1024MB.
Changed Graphics to Sapphire AMD Radeon HD 6770 1024MB.
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
Changed Graphics to XFX AMD Radeon HD 7950/8950 OEM / R9 280 3072MB.
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
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: 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 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 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: 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: 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: 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: 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: 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.