Architecturally, the GF110 chips used in the GeForce GTX 590 are not very different from the GF100, on which the first model in the Fermi line, the GTX 480, is based. Both GPUs use the same multiprocessor configuration; these chips consist of four Graphics Processing Clusters.
The new GeForce GTX 550 Ti model, based on the improved GF116 graphics processor, will not replace the GeForce GTS 450 video card on the market. At the beginning of their journey, these two models will coexist in the company's lineup together.
As with the GeForce GTX 580/570, the organization of the new core has not changed. Essentially, the GF114 is a fully active GF104 optimized to achieve higher clock speeds while keeping power consumption within reasonable limits.
When designing the GTX 570, NVIDIA designers followed the same path, reducing the number of stream processors and the bus width. The new product has 15 multiprocessors (accordingly, 480 CUDA cores remain) and 5 memory controllers (320-bit bus width, 40 ROP blocks).
The new GeForce GTX 580 is not something revolutionary. The main task that the company's engineers faced was to correct previously made errors, as well as increase productivity for a more significant lead over the main competitor AMD.
