Radeon HD 7950 Overclocking Linux
Benchmarking the AMD Radeon HD 7950 under Ubuntu Linux with the Catalyst driver at various clock-speeds and compared to reference Sapphire Radeon HD 6950. Linux Radeon benchmarking for a future article on Phoronix.com.


Radeon HD 6950 @ 800 - 1250MHz: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 6900 2048MB (800/1250MHz), Audio: Realtek ALC892, Monitor: SyncMaster, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: fglrx 8.95.3 Catalyst 12.2, OpenGL: 4.2.11554, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 2560x1600

Radeon HD 7950 @ 800 - 1250MHz: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 7900 3072MB (800/1250MHz), Audio: Realtek ALC892, Monitor: SyncMaster, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: fglrx 8.95.3 Catalyst 12.2, OpenGL: 4.2.11554, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 2560x1600

Radeon HD 7950 @ 900 - 1375MHz: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 7900 3072MB (900/1375MHz), Audio: Realtek ALC892, Monitor: SyncMaster, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: fglrx 8.95.3 Catalyst 12.2, OpenGL: 4.2.11554, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 2560x1600

Radeon HD 7950 @ 1025 - 1450MHz: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: AMD Radeon HD 7900 3072MB (1025/1450MHz), Audio: Realtek ALC892, Monitor: SyncMaster, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 12.04, Kernel: 3.2.0-18-generic (x86_64), Desktop: Unity 5.6.0, Display Server: X Server 1.11.3, Display Driver: fglrx 8.95.3 Catalyst 12.2, OpenGL: 4.2.11554, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 2560x1600


Doom 3 1.3.1
Resolution: 2560 x 1600 - Quality: Ultra
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 197.80 |=====================================
Radeon HD 7950 @ 800 - 1250MHz .. 187.43 |===================================
Radeon HD 7950 @ 900 - 1375MHz .. 187.93 |===================================
Radeon HD 7950 @ 1025 - 1450MHz . 187.00 |===================================


Xonotic 0.6
Resolution: 2560 x 1600 - Effects Quality: High
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 172.50 |=====================================
Radeon HD 7950 @ 800 - 1250MHz .. 162.52 |===================================
Radeon HD 7950 @ 900 - 1375MHz .. 163.98 |===================================
Radeon HD 7950 @ 1025 - 1450MHz . 165.34 |===================================


Xonotic 0.6
Resolution: 2560 x 1600 - Effects Quality: Ultra
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 123.53 |=====================================
Radeon HD 7950 @ 800 - 1250MHz .. 121.49 |====================================
Radeon HD 7950 @ 900 - 1375MHz .. 122.79 |=====================================
Radeon HD 7950 @ 1025 - 1450MHz . 122.89 |=====================================


Xonotic 0.6
Resolution: 2560 x 1600 - Effects Quality: Ultimate
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 84.37  |============================
Radeon HD 7950 @ 800 - 1250MHz .. 105.20 |===================================
Radeon HD 7950 @ 900 - 1375MHz .. 108.47 |====================================
Radeon HD 7950 @ 1025 - 1450MHz . 110.82 |=====================================


Warsow 0.61
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 233.87 |====================================
Radeon HD 7950 @ 800 - 1250MHz .. 232.83 |====================================
Radeon HD 7950 @ 900 - 1375MHz .. 235.03 |=====================================
Radeon HD 7950 @ 1025 - 1450MHz . 237.30 |=====================================


Unigine Sanctuary 2.3
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 81.82  |=========================
Radeon HD 7950 @ 800 - 1250MHz .. 110.09 |=================================
Radeon HD 7950 @ 900 - 1375MHz .. 121.78 |=====================================
Radeon HD 7950 @ 1025 - 1450MHz . 122.82 |=====================================


Unigine Tropics 1.3
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 113.40 |===========================
Radeon HD 7950 @ 800 - 1250MHz .. 131.58 |===============================
Radeon HD 7950 @ 900 - 1375MHz .. 144.18 |==================================
Radeon HD 7950 @ 1025 - 1450MHz . 158.06 |=====================================


Unigine Tropics 1.3
Resolution: 1920 x 1200
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 107.51 |==========================
Radeon HD 7950 @ 800 - 1250MHz .. 125.70 |==============================
Radeon HD 7950 @ 900 - 1375MHz .. 138.77 |==================================
Radeon HD 7950 @ 1025 - 1450MHz . 152.89 |=====================================


Unigine Tropics 1.3
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 74.24  |=========================
Radeon HD 7950 @ 800 - 1250MHz .. 88.20  |==============================
Radeon HD 7950 @ 900 - 1375MHz .. 98.11  |=================================
Radeon HD 7950 @ 1025 - 1450MHz . 108.60 |=====================================


Unigine Heaven 3.0
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 53.22 |======================
Radeon HD 7950 @ 800 - 1250MHz .. 76.66 |===============================
Radeon HD 7950 @ 900 - 1375MHz .. 85.16 |===================================
Radeon HD 7950 @ 1025 - 1450MHz . 92.87 |======================================


Unigine Heaven 3.0
Resolution: 1920 x 1200
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 49.26 |======================
Radeon HD 7950 @ 800 - 1250MHz .. 70.54 |===============================
Radeon HD 7950 @ 900 - 1375MHz .. 78.52 |==================================
Radeon HD 7950 @ 1025 - 1450MHz . 86.55 |======================================


Unigine Heaven 3.0
Resolution: 2560 x 1600
Frames Per Second > Higher Is Better
Radeon HD 6950 @ 800 - 1250MHz .. 29.78 |======================
Radeon HD 7950 @ 800 - 1250MHz .. 42.34 |===============================
Radeon HD 7950 @ 900 - 1375MHz .. 47.10 |===================================
Radeon HD 7950 @ 1025 - 1450MHz . 51.60 |======================================