ASUS recommends Windows 8.  

    ROG CG8565

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    The ROG Tytan is the most equipped and powerful gaming desktop, featuring instant overclocking

    • Exclusively quad-core CPU boosting to 4.6 GHz instantly with Turbo Gear
    • Hear the discrete XONAR Sound Card
    • Immerse in 3D Surround
    • Dual-SSD for Ultra Fast Boost
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      Incredible in Sound

      Born With Supremacy

      The ROG Tytan is inspired by ballistic missile submarines, with each element created exactly according to its purpose: domination over your enemy.

      35X Cleaner Audio Quality

      The ASUS XONAR sound card is powered by Dolby Home Theater technologies, and delivers up to 35 times cleaner audio quality (116dB SNR) than most on-board audio (85dB SNR)solutions. Being able to hear loud and clear enables you hear the enemy before you see them.

      Immersed in Gameplay

      The cutting edge graphics and optional 3D technology combine to create an immersive experience that puts you right in the game. These high-performance graphics options are intended for hardcore HD gaming experiences exceeding three displays while in 3D.

      Power Unleashed

      Overwhelm the enemy with the world's most powerful gaming desktop, the ROG Tytan. Stay at the top of your game with NVIDIA® GeForce® GTX 590* with up to 3GB of DDR5 graphics memory. Annihilate the enemies you encounter.
      *Optional

      Turbo Gear and DEFCON Indicator

      One button overclocking without the need to reboot. ROG Turbo Gear instantly shifts between 3 overclock modes. Increase your performance with the optional Intel® Core™ i7 2600K processor, unlocked and overclocked to 4.6 GHz, while the DEFCON indicator shows system readiness with blue and red LED lights.