http://talkback.zdnet.com/5208-12558-0.html?forumID=1&threadID=48909&messageID=915943&start=-9978
#1. PS3 RSX alone = 1.8 TFLOPS
Cell and RSX = equal over 2TFLOPS
GTX 280 = 933 GFLOPS
ATI 4800 = 1.2 teraFLOPS
#2. I will explain:
RSX = "Multi-way Programmable Parallel Floating Point Shader Pipelines". Now no other device uses this description, but if you were a student of Graphics Cards, you would realize that this was basically describing multiple pathways through a grid or array of Shader processors.
#3. So it's not a "Fixed Function Pipeline" of G70 with 24-Vertex Shaders and 8-Pixel Shaders. This describes a Unified Shader Architecture!
#4. Supports full 128bit HDR Lighting. Same as G80's and G70 only supports 64bit HDR like all last gen GPU's. Dead give away!
#5. From as early as Feb 2005 at GDC Sony has announced that PS3 (RSX) would use OpenGL ES 2.0. At the time 2.0 wasn't out, so they wrote feature supports of RSX into OGL ES 1.1 including Fully Programmable Shader Pipeline and call it PSGL. Khronos Group took anything that could be done in a Shader out of the Fixed Function Pipeline (including Transform and Lighting) streamlining it for future Embedded Hardware. What does that mean?
#6. At least for OpenGL ES 2.0 devices (not PC version) it becomes a unified shader model and remember RSX is fully compliant. OpenGL ES 2.0 will only run on advanced hardware just like DX10.
Log in to comment