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.
Compare your own system(s) to this result file with the
Phoronix Test Suite by running the command:
phoronix-test-suite benchmark 1201143-BY-RADEONGAL97
Radeon Gallium3D PCI Express 2.0,
"Nexuiz 2.5.2 - Resolution: 800 x 600 - HDR: No - Sound: Off",
Higher Results Are Better
"Radeon HD 4670: Default",105.4492086,105.5216155,105.5583099
"Radeon HD 4670: PCI-E 2.0",102.8904935,102.9667039,102.8053361
"Radeon HD 4770: Default",139.6306183,139.252515,139.5804827
"Radeon HD 4770: PCI-E 2.0",142.6362617,142.7200067,142.2664427
"Radeon HD 4890: Default",196.6394279,195.9620035,196.7357541
"Radeon HD 4890: PCI-E 2.0",199.296489,200.1593128,199.0033985
"Radeon HD 5450: Default",29.1701869,29.1702627,29.2035709
"Radeon HD 5450: PCI-E 2.0",29.3425862,29.2809863,29.311674
"Nexuiz 2.5.2 - Resolution: 1280 x 1024 - HDR: No - Sound: Off",
Higher Results Are Better
"Radeon HD 4670: Default",40.3580673,40.395045,40.4123115
"Radeon HD 4670: PCI-E 2.0",
"Radeon HD 5750: Default",85.4804286,65.8094055,65.8410586,65.7956058,65.8556726,65.8614218
"Radeon HD 5750: PCI-E 2.0",85.8083021,85.7390774,85.7884551
"Radeon HD 4770: Default",33.7396517,75.3762358,75.4028278,75.392966,75.3602867,75.3577968
"Radeon HD 4770: PCI-E 2.0",48.0156983,76.2478147,76.3057146,76.2358509,76.3154735,76.3194769
"Radeon HD 4890: Default",137.284574,140.8920257,141.2230566
"Radeon HD 4890: PCI-E 2.0",106.0128267,144.2231127,144.4561119,144.3038578,144.1714141,144.1164867
"Radeon HD 5450: Default",12.6637228,14.8975422,14.9013592,14.9175875,14.8956513,14.9117991
"Radeon HD 5450: PCI-E 2.0",15.4022992,14.9290388,14.9274509
"OpenArena 0.8.5 - Resolution: 1920 x 1080",
Higher Results Are Better
"Radeon HD 4670: Default",96,95.5,95.8
"Radeon HD 4670: PCI-E 2.0",122.9,122.2,122.5
"Radeon HD 4770: Default",132.4,132,132
"Radeon HD 4770: PCI-E 2.0",133.8,133.2,134.2
"Radeon HD 4890: Default",224.4,223.2,222.9
"Radeon HD 4890: PCI-E 2.0",228.4,229.8,230.2
"Radeon HD 5450: Default",23.3,23.4,23.4
"Radeon HD 5450: PCI-E 2.0",23.4,23.4,23.4
"OpenArena 0.8.5 - Resolution: 1280 x 1024",
Higher Results Are Better
"Radeon HD 4670: Default",146.8,146.9,147.7
"Radeon HD 4670: PCI-E 2.0",
"Radeon HD 4770: Default",3,179.1,180.2,179.6,179.7,179.5
"Radeon HD 4770: PCI-E 2.0",3,183.1,183.1,182.9,183.1,183.9
"Radeon HD 4890: Default",3,276.2,277.7,281.4,277.8,279.5
"Radeon HD 4890: PCI-E 2.0",3,287.3,286.7,285.2,288.3,286.9
"Radeon HD 5450: Default",3,36.7,36.7,36.7,36.7,36.7
"Radeon HD 5450: PCI-E 2.0",3,36.9,36.8,36.8,36.9,36.8
"OpenArena 0.8.5 - Resolution: 800 x 600",
Higher Results Are Better
"Radeon HD 4670: Default",282.9,284.6,277.1
"Radeon HD 4670: PCI-E 2.0",272.3,272.4,272.3
"Radeon HD 6950: Default",359.7,354.3,358
"Radeon HD 6950: PCI-E 2.0",214.8,214.1,213.6
"Radeon HD 5750: Default",309.7,308.8,310.7
"Radeon HD 5750: PCI-E 2.0",312.5,315.5,314.5
"Radeon HD 4770: Default",290.3,292.2,293.4
"Radeon HD 4770: PCI-E 2.0",293.1,295.7,293
"Radeon HD 4890: Default",339.9,336.4,339.6
"Radeon HD 4890: PCI-E 2.0",342.2,342.9,343.7
"Radeon HD 5450: Default",89.5,89.3,89.3
"Radeon HD 5450: PCI-E 2.0",89.9,90.1,90.1
"Lightsmark 2008 - Resolution: 1920 x 1080",
Higher Results Are Better
"Radeon HD 4670: Default",30.53,30.73,30.81
"Radeon HD 4670: PCI-E 2.0",34.38,37.81,37.84,36.41,34.41,38.3
"Radeon HD 5750: Default",52.04,52.09,51.96
"Radeon HD 5750: PCI-E 2.0",68.53,72.38,60.69,60.02,60.71,60.54
"Radeon HD 6870: Default",117.21,116.7,101.73,117.16,116.92,116.61
"Radeon HD 4890: Default",75.41,84.08,83.97,75.17,75.41,93.55
"Radeon HD 4890: PCI-E 2.0",106.3,112.75,112.38
"Radeon HD 5450: Default",14.03,14.06,14.01
"Radeon HD 5450: PCI-E 2.0",14.64,14.86,14.87
"Nexuiz 2.5.2 - Resolution: 1920 x 1080 - HDR: No - Sound: Off",
Higher Results Are Better
"Radeon HD 4670: Default",17.9432789,18.3515488,17.9711886
"Radeon HD 4670: PCI-E 2.0",17.4975497,17.915636,17.9246222
"Radeon HD 6950: Default",47.8268701,50.4378805,50.2246513
"Radeon HD 6950: PCI-E 2.0",45.9441032,46.9493721,47.2176981
"Radeon HD 5750: Default",23.9380037,25.3705959,24.3695352
"Radeon HD 5750: PCI-E 2.0",37.2814375,38.0130223,38.0113864
"Radeon HD 6870: Default",49.0334021,50.066719,50.0324832
"Radeon HD 6870: PCI-E 2.0",48.7130876,49.9258569,50.0535295
"Radeon HD 4770: Default",24.9221477,25.1611203,24.5781649
"Radeon HD 4770: PCI-E 2.0",35.7012697,36.6045725,35.9602551
"Radeon HD 4890: Default",26.753314,27.8001066,26.8842673
"Radeon HD 4890: PCI-E 2.0",44.9485636,44.4677275,44.6535524
"Radeon HD 5450: Default",9.3523766,9.3594993,9.3547265
"Radeon HD 5450: PCI-E 2.0",11.7547633,11.6128889,11.7522902