AMD Radeon HD 7950 - Windows 7 vs. Ubuntu 12.04 Linux
Benchmarking of an AMD Radeon HD 7950 Southern Islands graphics card under Microsoft Windows 7 Pro x64 and under Ubuntu 12.04 LTS x86_64 Linux. Testing with stock distributions on same hardware. Benchmarking for a future article on Phoronix.com.


Ubuntu 12.04 LTS: 

	Processor: Intel Core i7-3770K @ 3.50GHz (8 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 7900 3072MB (900/1375MHz), Audio: Realtek ALC892, Monitor: SyncMaster, Network: Realtek RTL8111/8168B

	OS: Ubuntu 12.04, Kernel: 3.2.0-23-generic (x86_64), Desktop: Unity 5.10.0, Display Server: X Server 1.11.3, Display Driver: fglrx 8.96.4 Catalyst 12.4, OpenGL: 4.2.11631, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 2560x1600

Windows 7: 

	Processor: Intel Family 6 Model 58 Stepping 9 Intel (8 Cores), Disk: 56GB

	OS: Windows NT, Kernel: 6.1 (x86_64)


Lightsmark 2008
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 456.19 |=============================
Windows 7 ........ 804.71 |====================================================


Nexuiz 2.5.2
Resolution: 2560 x 1600 - HDR: Yes - Sound: On
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 123.14 |===============================================
Windows 7 ........ 135.05 |====================================================


Unigine Heaven 2.1
Resolution: 1400 x 1050
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 79.34 |====================================================
Windows 7 ........ 80.77 |=====================================================


Unigine Heaven 2.1
Resolution: 1600 x 1200
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 71.08 |=====================================================
Windows 7 ........ 69.21 |====================================================


Unigine Heaven 2.1
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 66.60 |=====================================================
Windows 7 ........ 65.01 |====================================================


Unigine Heaven 2.1
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 44.85 |=====================================================
Windows 7 ........ 43.91 |====================================================


Unigine Sanctuary 2.3
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 197.96 |====================================================
Windows 7 ........ 190.29 |==================================================


Unigine Sanctuary 2.3
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 121.89 |====================================================
Windows 7 ........ 120.38 |===================================================


Unigine Tropics 1.3
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 153.57 |====================================================
Windows 7 ........ 148.58 |==================================================


Unigine Tropics 1.3
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 102.49 |====================================================
Windows 7 ........ 101.37 |===================================================


Warsow 0.61
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 319.50 |================================================
Windows 7 ........ 347.73 |====================================================


Xonotic 0.6
Resolution: 2560 x 1600 - Effects Quality: High
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 174.89 |==============================================
Windows 7 ........ 199.61 |====================================================


Xonotic 0.6
Resolution: 2560 x 1600 - Effects Quality: Ultra
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 128.26 |=================================================
Windows 7 ........ 137.40 |====================================================


Xonotic 0.6
Resolution: 2560 x 1600 - Effects Quality: Ultimate
Frames Per Second > Higher Is Better
Ubuntu 12.04 LTS . 109.89 |==================================================
Windows 7 ........ 113.81 |====================================================