Radeon Gallium3D PCI Express 2.0
For a future article on Michael Larabel's Phoronix.com looking at PCI Express 2.0 (PCI-E 2.0) performance when using the open-source Radeon driver stack (latest Linux kernel Radeon DRM, Mesa 8.0 R600g Gallium3D, xf86-video-ati Git DDX) and toggling the radeon.pcie_gen2 kernel module parameter on a few different ATI/AMD Radeon graphics cards with PCI Express 2.0 support under Ubuntu Linux.


Radeon HD 4670: Default: 

	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 4670 512MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 4670: PCI-E 2.0: 

	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 4670 512MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 6950: Default: 

	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 6900 2048MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 6950: PCI-E 2.0: 

	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 6900 2048MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 5750: Default: 

	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 5750 1024MB (700/1150MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 5750: PCI-E 2.0: 

	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 5750 1024MB, Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 6870: Default: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: ATI Radeon HD 6800 1024MB (960/1150MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 6870: PCI-E 2.0: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: ATI Radeon HD 6800 1024MB (960/1150MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 4770: Default: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: ATI Radeon HD 4770 [RV740] 512MB (750/799MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 4770: PCI-E 2.0: 

	Processor: Intel Core i7-3960X @ 3.20GHz (12 Cores), Motherboard: Intel DX79SI, Chipset: Intel Sandy DMI2, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: ATI Radeon HD 4770 [RV740] 512MB (750/799MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 4890: Default: 

	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 4890 1024MB (900/975MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 4890: PCI-E 2.0: 

	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 4890 1024MB (900/975MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 5450: Default: 

	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 5450 512MB (650/400MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080

Radeon HD 5450: PCI-E 2.0: 

	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 5450 512MB (650/400MHz), Audio: Realtek ALC892, Monitor: DELL P2210H, Network: Intel 82579LM Gigabit Connection

	OS: Ubuntu 11.10, Kernel: 3.2.0-030200-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: radeon 6.14.99, OpenGL: 2.1 Mesa 8.0-devel (git-baab68e) Gallium 0.4, Compiler: GCC 4.6.1 + llvm 2.9 (Ubuntu 2.9+dfsg-3ubuntu2), File-System: ext4, Screen Resolution: 1920x1080


Nexuiz 2.5.2
Resolution: 1920 x 1080 - HDR: No - Sound: Off
Frames Per Second > Higher Is Better
Radeon HD 4670: Default ... 18.09 |================
Radeon HD 4670: PCI-E 2.0 . 17.78 |================
Radeon HD 6950: Default ... 49.50 |============================================
Radeon HD 6950: PCI-E 2.0 . 46.70 |=========================================
Radeon HD 5750: Default ... 24.56 |======================
Radeon HD 5750: PCI-E 2.0 . 37.77 |=================================
Radeon HD 6870: Default ... 49.71 |============================================
Radeon HD 6870: PCI-E 2.0 . 49.56 |============================================
Radeon HD 4770: Default ... 24.89 |======================
Radeon HD 4770: PCI-E 2.0 . 36.09 |================================
Radeon HD 4890: Default ... 27.15 |========================
Radeon HD 4890: PCI-E 2.0 . 44.69 |========================================
Radeon HD 5450: Default ... 9.36  |========
Radeon HD 5450: PCI-E 2.0 . 11.71 |==========


Lightsmark 2008
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Radeon HD 4670: Default ... 30.69  |============
Radeon HD 4670: PCI-E 2.0 . 36.53  |==============
Radeon HD 5750: Default ... 52.03  |====================
Radeon HD 5750: PCI-E 2.0 . 63.81  |========================
Radeon HD 6870: Default ... 114.39 |===========================================
Radeon HD 4890: Default ... 81.27  |===============================
Radeon HD 4890: PCI-E 2.0 . 110.48 |==========================================
Radeon HD 5450: Default ... 14.03  |=====
Radeon HD 5450: PCI-E 2.0 . 14.79  |======


OpenArena 0.8.5
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Radeon HD 4670: Default ... 95.77  |==================
Radeon HD 4670: PCI-E 2.0 . 122.53 |=======================
Radeon HD 4770: Default ... 132.13 |=========================
Radeon HD 4770: PCI-E 2.0 . 133.73 |=========================
Radeon HD 4890: Default ... 223.50 |==========================================
Radeon HD 4890: PCI-E 2.0 . 229.47 |===========================================
Radeon HD 5450: Default ... 23.37  |====
Radeon HD 5450: PCI-E 2.0 . 23.40  |====


OpenArena 0.8.5
Resolution: 1280 x 1024
Frames Per Second > Higher Is Better
Radeon HD 4670: Default ... 147.13 |==========================
Radeon HD 4670: PCI-E 2.0 . 162.40 |=============================
Radeon HD 4770: Default ... 150.18 |===========================
Radeon HD 4770: PCI-E 2.0 . 153.18 |===========================
Radeon HD 4890: Default ... 232.60 |==========================================
Radeon HD 4890: PCI-E 2.0 . 239.57 |===========================================
Radeon HD 5450: Default ... 31.08  |======
Radeon HD 5450: PCI-E 2.0 . 31.20  |======


Nexuiz 2.5.2
Resolution: 1280 x 1024 - HDR: No - Sound: Off
Frames Per Second > Higher Is Better
Radeon HD 4670: Default ... 40.39  |============
Radeon HD 4670: PCI-E 2.0 . 52.77  |================
Radeon HD 5750: Default ... 69.11  |=====================
Radeon HD 5750: PCI-E 2.0 . 85.78  |==========================
Radeon HD 4770: Default ... 68.44  |=====================
Radeon HD 4770: PCI-E 2.0 . 71.57  |======================
Radeon HD 4890: Default ... 139.80 |===========================================
Radeon HD 4890: PCI-E 2.0 . 137.88 |==========================================
Radeon HD 5450: Default ... 14.53  |====
Radeon HD 5450: PCI-E 2.0 . 15.09  |=====


Nexuiz 2.5.2
Resolution: 800 x 600 - HDR: No - Sound: Off
Frames Per Second > Higher Is Better
Radeon HD 4670: Default ... 105.51 |=======================
Radeon HD 4670: PCI-E 2.0 . 102.89 |======================
Radeon HD 4770: Default ... 139.49 |==============================
Radeon HD 4770: PCI-E 2.0 . 142.54 |===============================
Radeon HD 4890: Default ... 196.45 |==========================================
Radeon HD 4890: PCI-E 2.0 . 199.49 |===========================================
Radeon HD 5450: Default ... 29.18  |======
Radeon HD 5450: PCI-E 2.0 . 29.31  |======


OpenArena 0.8.5
Resolution: 800 x 600
Frames Per Second > Higher Is Better
Radeon HD 4670: Default ... 281.53 |==================================
Radeon HD 4670: PCI-E 2.0 . 272.33 |=================================
Radeon HD 6950: Default ... 357.33 |===========================================
Radeon HD 6950: PCI-E 2.0 . 214.17 |==========================
Radeon HD 5750: Default ... 309.73 |=====================================
Radeon HD 5750: PCI-E 2.0 . 314.17 |======================================
Radeon HD 4770: Default ... 291.97 |===================================
Radeon HD 4770: PCI-E 2.0 . 293.93 |===================================
Radeon HD 4890: Default ... 338.63 |=========================================
Radeon HD 4890: PCI-E 2.0 . 342.93 |=========================================
Radeon HD 5450: Default ... 89.37  |===========
Radeon HD 5450: PCI-E 2.0 . 90.03  |===========