SteamOS steamos-session VS gnome-session VS gnome-classic-session steamos-session: Processor: AMD FX-8350 Eight-Core @ 4.40GHz (8 Cores), Motherboard: MSI 990FXA-GD80 (MS-7640) v2.2, Chipset: AMD ATI RD890 bridge, Memory: 16384MB, Disk: 120GB OCZ VERTEX3 MI + 1000GB Western Digital WD10EZEX-21M, Graphics: Zotac NVIDIA GeForce GTX 780 3072MB (862/3004MHz), Audio: Realtek ALC892, Monitor: Philips 273ELH, Network: Realtek RTL8111/8168B OS: SteamOS 1.0, Kernel: 3.10-5-amd64 (x86_64), Desktop: GNOME Shell 3.4.2, Display Server: Wayland Weston + X Server 1.12.4 + SurfaceFlinger + GNOME Shell Wayland, Display Driver: NVIDIA 346.47, OpenGL: 4.5.0, File-System: ext4, Screen Resolution: 1920x1080 gnome-session: Processor: AMD FX-8350 Eight-Core @ 4.40GHz (8 Cores), Motherboard: MSI 990FXA-GD80 (MS-7640) v2.2, Chipset: AMD ATI RD890 bridge, Memory: 16384MB, Disk: 120GB OCZ VERTEX3 MI + 1000GB Western Digital WD10EZEX-21M, Graphics: Zotac NVIDIA GeForce GTX 780 3072MB (862/3004MHz), Audio: Realtek ALC892, Monitor: Philips 273ELH, Network: Realtek RTL8111/8168B OS: SteamOS 1.0, Kernel: 3.10-5-amd64 (x86_64), Desktop: GNOME Shell 3.4.2, Display Server: Wayland Weston + X Server 1.12.4 + SurfaceFlinger + GNOME Shell Wayland, Display Driver: NVIDIA 346.47, OpenGL: 4.5.0, File-System: ext4, Screen Resolution: 1920x1080 gnome-classic: Processor: AMD FX-8350 Eight-Core @ 4.40GHz (8 Cores), Motherboard: MSI 990FXA-GD80 (MS-7640) v2.2, Chipset: AMD ATI RD890 bridge, Memory: 16384MB, Disk: 120GB OCZ VERTEX3 MI + 1000GB Western Digital WD10EZEX-21M, Graphics: Zotac NVIDIA GeForce GTX 780 3072MB (862/3004MHz), Audio: Realtek ALC892, Monitor: Philips 273ELH, Network: Realtek RTL8111/8168B OS: SteamOS 1.0, Kernel: 3.10-5-amd64 (x86_64), Desktop: GNOME Shell 3.4.2, Display Server: Wayland Weston + X Server 1.12.4 + SurfaceFlinger + GNOME Shell Wayland, Display Driver: NVIDIA 346.47, OpenGL: 4.5.0, File-System: ext4, Screen Resolution: 1920x1080 Unreal Engine 4: Atlantis Substance 4.5.1 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 74.77 |====================================================== gnome-session ... 74.16 |====================================================== gnome-classic ... 74.44 |====================================================== Unreal Engine 4: Atlantis Substance Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 3.3 AVG: 14.2 MAX: 65.6 gnome-session ... MIN: 3.5 AVG: 14.4 MAX: 66.4 gnome-classic ... MIN: 3.3 AVG: 14.3 MAX: 54.3 Unreal Engine 3: BioShock Infinite Resolution: 1920 x 1080 - Effects Quality: Ultra Frames Per Second > Higher Is Better steamos-session . 70.54 |====================================================== gnome-session ... 70.06 |====================================================== gnome-classic ... 70.40 |====================================================== Unreal Engine 4: Effects Cave 1.0.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 62.03 |====================================================== gnome-session ... 61.51 |====================================================== gnome-classic ... 61.07 |===================================================== Unreal Engine 4: Effects Cave Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 6.4 AVG: 18.2 MAX: 58.3 gnome-session ... MIN: 6.4 AVG: 18.2 MAX: 59.3 gnome-classic ... MIN: 6.5 AVG: 18.4 MAX: 59.6 Source Engine: Counter-Strike: Global Offensive Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 136.89 |===================================================== gnome-session ... 135.17 |==================================================== gnome-classic ... 135.73 |===================================================== Unity 4 Engine: Dreamfall Chapters 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 76.41 |====================================================== gnome-session ... 75.80 |===================================================== gnome-classic ... 76.81 |====================================================== Dreamfall Chapters Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 7.6 AVG: 13.7 MAX: 20.6 gnome-session ... MIN: 8.9 AVG: 13.8 MAX: 20.8 gnome-classic ... MIN: 9.1 AVG: 13.7 MAX: 20.7 Unreal Engine 4: Elemental 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 73.37 |====================================================== gnome-session ... 73.41 |====================================================== gnome-classic ... 72.86 |====================================================== Unreal Engine 4: Elemental Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 6 AVG: 17 MAX: 107 gnome-session ... MIN: 6 AVG: 17 MAX: 105 gnome-classic ... MIN: 6 AVG: 17 MAX: 99 Source Engine: Estranged Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 183.41 |===================================================== gnome-session ... 179.94 |==================================================== gnome-classic ... 176.97 |=================================================== id Tech 4 Engine: ET: Quake Wars Demo Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 123.64 |===================================================== gnome-session ... 120.18 |==================================================== gnome-classic ... 120.67 |==================================================== Unigine Engine: Heaven 4.0 Resolution: 1920 x 1080 - Mode: Fullscreen Frames Per Second > Higher Is Better steamos-session . 79.07 |====================================================== gnome-session ... 77.57 |===================================================== gnome-classic ... 77.40 |===================================================== Source Engine: Half-Life 2 - Lost Coast Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 204.09 |===================================================== gnome-session ... 198.58 |==================================================== gnome-classic ... 197.10 |=================================================== Unreal Engine 2: Killing Floor Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 93.06 |====================================================== gnome-session ... 93.47 |====================================================== gnome-classic ... 92.55 |===================================================== Source Engine: Left4Dead2 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 114.38 |===================================================== gnome-session ... 111.81 |==================================================== gnome-classic ... 112.43 |==================================================== Unreal Engine 4: Matinee Fight Scene 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 34.04 |====================================================== gnome-session ... 32.93 |==================================================== gnome-classic ... 32.58 |==================================================== Unreal Engine 4: Matinee Fight Scene Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 17 AVG: 30 MAX: 83 gnome-session ... MIN: 16 AVG: 31 MAX: 98 gnome-classic ... MIN: 18 AVG: 32 MAX: 110 4A Engine: Metro 2033 Redux Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 80.22 |====================================================== gnome-session ... 79.62 |====================================================== gnome-classic ... 79.42 |===================================================== 4A Engine: Metro: Last Light Redux Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 84.99 |====================================================== gnome-session ... 84.72 |====================================================== gnome-classic ... 84.51 |====================================================== Unreal Engine 4: Landscape Mountains 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 10.77 |====================================================== gnome-session ... 10.75 |====================================================== gnome-classic ... 10.78 |====================================================== Unreal Engine 4: Landscape Mountains Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 77 AVG: 94 MAX: 355 gnome-session ... MIN: 77 AVG: 94 MAX: 298 gnome-classic ... MIN: 77 AVG: 95 MAX: 296 Source Engine: Nuclear Dawn Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 140.76 |===================================================== gnome-session ... 138.23 |==================================================== gnome-classic ... 137.65 |==================================================== Source Engine: Portal 2 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 240.43 |===================================================== gnome-session ... 233.98 |==================================================== gnome-classic ... 226.22 |================================================== Source Engine: Portal Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 417.58 |===================================================== gnome-session ... 415.16 |===================================================== gnome-classic ... 373.54 |=============================================== id Tech 4 Engine: Prey 1.4.119 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 229.27 |===================================================== gnome-session ... 222.18 |=================================================== gnome-classic ... 228.64 |===================================================== Unigine Engine: Sanctuary 2.3 Resolution: 1920 x 1080 - Mode: Fullscreen Frames Per Second > Higher Is Better steamos-session . 301.73 |===================================================== gnome-session ... 298.83 |==================================================== gnome-classic ... 284.37 |================================================== Road Hog Engine: Shadow Warrior 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 98.30 |====================================================== gnome-session ... 96.08 |===================================================== gnome-classic ... 95.59 |===================================================== DarkPlaces Engine: Steel Storm Burning Retribution Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 193.52 |===================================================== gnome-session ... 189.38 |==================================================== gnome-classic ... 189.24 |==================================================== Unreal Engine 4: Reflections Subway 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 77.25 |====================================================== gnome-session ... 76.59 |====================================================== gnome-classic ... 76.86 |====================================================== Unreal Engine 4: Reflections Subway Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 5.0 AVG: 13.4 MAX: 36.1 gnome-session ... MIN: 5.3 AVG: 13.5 MAX: 40.0 gnome-classic ... MIN: 5.3 AVG: 13.5 MAX: 38.2 Serious Engine 4: Talos Principle 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 59.43 |====================================================== gnome-session ... 59.13 |====================================================== gnome-classic ... 59.47 |====================================================== Tesseract Engine/Game 2014-05-12 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 160.49 |===================================================== gnome-session ... 160.01 |===================================================== gnome-classic ... 159.74 |===================================================== Source Engine: Team Fortress 2 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 126.97 |===================================================== gnome-session ... 126.63 |===================================================== gnome-classic ... 126.71 |===================================================== Unigine Engine: Tropics 1.3 Resolution: 1920 x 1080 - Mode: Fullscreen Frames Per Second > Higher Is Better steamos-session . 197.34 |===================================================== gnome-session ... 196.07 |===================================================== gnome-classic ... 194.01 |==================================================== Unreal Engine 2.5: Unreal Tournament 2004 3334 Map: AS-Convoy Botmatch - Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 153.38 |===================================================== gnome-session ... 152.59 |===================================================== gnome-classic ... 150.96 |==================================================== Unigine Engine: Valley 1.0 Resolution: 1920 x 1080 - Mode: Fullscreen Frames Per Second > Higher Is Better steamos-session . 74.23 |====================================================== gnome-session ... 73.12 |===================================================== gnome-classic ... 72.98 |===================================================== Qfusion Engine: Warsow 1.51 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 354.82 |===================================================== gnome-session ... 347.62 |==================================================== gnome-classic ... 338.85 |=================================================== Dagor Engine: War Thunder 1.0 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better steamos-session . 82.03 |====================================================== gnome-session ... 78.90 |==================================================== gnome-classic ... 79.27 |==================================================== Dagor Engine: War Thunder Resolution: 1920 x 1080 - Total Frame Time Milliseconds < Lower Is Better steamos-session . MIN: 8.8 AVG: 12.5 MAX: 16.4 gnome-session ... MIN: 9.4 AVG: 12.8 MAX: 16.5 gnome-classic ... MIN: 9.4 AVG: 12.7 MAX: 16.3 DarkPlaces Engine: Xonotic 0.8 Resolution: 1920 x 1080 - Effects Quality: Ultimate Frames Per Second > Higher Is Better steamos-session . 168.58 |===================================================== gnome-session ... 166.18 |==================================================== gnome-classic ... 166.82 |====================================================