NVIDIA GT216 performance

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POSTER: computer news   ||   NVIDIA GT216 PERFORMANCE	DATE:2008-12-28
This week we already introduced the characteristics of future chip NVIDIA  GT216. There are 168 stream processors (SP) and 56  sample textures blocks (TMU). The memory bus will be 192 bits, and the number of (ROP) blocks  will be equal to 12. Today associate reported an alternative information about the characteristics of GT216. The memory bus remained equal to 192 bits, and here the number of stream processors and sample textures blocks was decreased to 160 and 40 pieces . This will mean that NVIDIA continued to displace the balance of textural and mathematical operations . In G9x chips it composed 2:1, in the GT200 it is already 3:1, and GT216 will get 4:1. Besides the characteristics, associate also reported the theoretical performance level of GT216, indicated in giga flops (GFLOPS : billions operations floating points per second ). It is 600-800 GFLOPS. Relying on the indicated performance, it is possible to calculate the clock frequency, at which will work the stream processors. For achievement of peak performance 800 GFLOPS , the frequency of 160 SP will have to be 1,66 GHz. Such shader frequencies were used in G92 chip within the  65 NM technical processes. We also note that the sample textures blocks frequency cannot be more than the half of the shader domain frequency  . Thus, it will be hardly more than 800 MHz, and this together with the relatively small number of textural blocks, most likely will come out as the main factor, which limits the GT216 performance. Anyway, 600-800 GFLOPS for GT216 appear to be a worthy result against the GeForce 9800 GTX+ (708 GFLOPS) and splendid against the G96 (135 GFLOPS) and G94 (312 GFLOPS). Related Products :

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