With a similar design as the Toshiba G900, it has a 3-inch WQVGA WVGA display screen at 800 x 480 pixel. Powered by the Intel XScale 520MHz cpu, the O2 XDA Vista will also has a standalone NVIDIA GoForce 5500 GPU. According to the NVIDIA GoForce info, the NVIDIA GoForce 5500 is able to delivers a host of multimedia features, including:

• able playback H.264, WMV9 and MPEG-4 video up to D1 resolution at 30 frames per second (fps)
• Compatible with major mobile TV standards including DVB-H, ISDB-T, and DMB networks
• include surround sound processor to deliver an immersive audio experience in the palm of a hand
• 3X the 3D performance of the previous generation2
• Sharp, crystal clear digital photography
• Rapid multi-shot capabilities so users never miss a photo
• Support for up to 10 megapixel resolution
• Ultra-low power consumption
• Dedicated low-power hardware design delivers more hours of entertainment on the phone with less drain on the talk time

Other than a powerful graphic processor, the O2 Vista has a 3 megapixel camera, secondary video call camera, GPS, WiFi, bluetooth and support HSDPA data connection.

Source [it168]