It wasn't that long ago that we were commending ATI on the stellar regularity of its product launches while NVIDIA was floundering, yet now the roles are reversed and we're seeing NVIDIA flesh out its second generation of Fermi products with the midrange GeForce GTX 550 Ti presented today. Its biggest attraction is a $150 price tag, but it makes a major concession in order to reach that pricing plateau -- there are only 192 CUDA cores inside it, equal to the previous-gen GTS 450, but less than the celebrated
