[电脑] 索尼在无线USB技术上开始另一场标准

wiki上摘录的，7500W本来就是实际数据又不是吹牛，虽然说只是没有纹理情况下的像素填充率


    * Pixel pipelines: 16
    * Video output resolution: variable from 256x224 to 1280x1024 pixels
    * 4 MB (4 × 220 bytes) Embedded DRAM video memory bandwidth at 48 gigabytes per second (main system 32 MB can be dedicated into VRAM for off-screen materials)
          o Texture buffer bandwidth: 9.6 GB/s
          o Frame buffer bandwidth: 38.4 GB/s
    * DRAM Bus width: 2560-bit (composed of three independent buses: 1024-bit write, 1024-bit read, 512-bit read/write)
    * Pixel Configuration: RGB: Alpha:Z Buffer (24:8, 15:1 for RGB, 16, 24, or 32-bit Z buffer)
    * Dedicated connection to: Main CPU and VU1
    * Overall Pixel fillrate: 16x147 = 2.352 Gpixel/s (rounded to 2.4 Gpixel/s)
          o Pixel fillrate: with no texture, flat shaded 2.4(75,000,000 32pixel raster triangles)
          o Pixel fillrate: with 1 full texture(Diffuse Map), Gouraud shaded 1.2 (37,750,000 32-bit pixel raster triangles)
          o Pixel fillrate: with 2 full textures(Diffuse map + specular or alpha or other), Gouraud shaded 0.6 (18,750,000 32-bit pixel raster triangles)
    * GS effects: AAx2 (poly sorting required)[30], Bilinear, Trilinear, Multi-pass, Palletizing (4-bit = 6:1 ratio, 8-bit = 4:1)
    * Multi-pass rendering ability
          o Four passes = 300 Mpixel/s (300 Mpixel/s divided by 32pixel = 9,375,000 triangle/sec lossed every four passes)

http://www.technology.scee.net/f ... S2Optimisations.pdf