NVIDIA is reportedly working on a new mainstream GPU for a mid-March launch. The graphics giant is planning to name it GeForce GTX 550 Ti, that's right, "GTX" prefix and "Ti" suffix monikers being extended to the core mainstream, in place of the typical "GTS". The new GPU will be based on the 40 nanometer GF116 silicon. Its exact specifications are not known, except that the GPU will use a 128-bit wide GDDR5 memory interface, and will be pin-compatible with GF106, on which is based the GeForce GTS 450. Its performance is estimated to be up to 35% higher than ATI Radeon HD 5770. Due to an electrical redesign over GF106, the GTX 550 Ti is expected to have a TDP of just 110W, nearly the same as that of the GTS 450, except having higher performance. The NVIDIA GeForce GTX 550 Ti is slated for release on 15 March, 2011.