Bueno...no viene de fuentes oficiales, lo he leido en un newgroup de noticias en MS acerca de la Xbox, y a una pregunta que hicieron se respondio eso, leer con atención:
"The Intel-developed Xbox CPU is based upon the company's Pentium III line of processors and clocks at 733MHz. While chip architectures vary, making them virtually impossible to compare, the PlayStation 2's CPU runs at 294MHz, and the GameCube CPU clocks at 486MHz. Needless to say, Microsoft's upcoming console can more than compete with the competition where computational operations are concerned. The Xbox will come with 64MB of unified DRAM, compared to just 32MB of the same memory in the PlayStation 2 and 43MB of total RAM for the GameCube. The Xbox's memory can be allocated however the developer sees fit, eliminating the bottlenecks associated with the PlayStation 2's limited amount of VRAM.
The 250MHz Xbox GPU was initially announced as 300MHz and is developed by Nvidia, the company behind the popular GeForce video cards for the PC. Specifically, the Xbox GPU is based upon Nvidia's recently released GeForce 3 technology and is classified as the NV2a. Dubbed the X-Chip, the Xbox's graphics processor is capable of a multitude of onboard special effects including full-scene antialiasing, four simultaneous textures per object, fog, environment mapping, pixel and texel shaders, bump mapping, and real-time lighting. Despite the X-Chip's ability to display just four textures per object compared to eight for the GameCube, the Xbox's textures should be a marked improvement over those on the PlayStation 2, thanks to onboard texture compression at a 6:1 ratio. The Xbox's unified DRAM should also aid in texture clarity since developers have the freedom to allocate it however they wish. The X-Chip can display graphics at a maximum resolution of 1920x1080.
Xbox software will be stored on 4.5GB DVD discs and will be sold in standard DVD cases just like PlayStation 2 and GameCube software.
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A parte de hacer comparaciones con la PS2, que no es por ahi a donde quiero llegar, el último parrafo pone que los discos DVD seran de 4.5GB ....mi pregunta es...aunque los discos fueran de doble capa es posible que fueran un DVD especial de doble capa pero de 4.5GB de capacidad?? Porque si eso fuera cierto se podria grabar los backups en DVD-R de una capa....que pensais de ello??;)
Ahh...se me olvidaba, para que luego no digais por ahi que el P3 de la Xbox es un Intel convencional del PC, sino un procesador creado por Intel especifico para la Xbox...