NVIDIA is preparing to debut the GeForce 600 generation on 6th December, with mainstream mobile GeForce 600M GPUs. First in line will be GeForce 610M, GeForce GT 630M and GeForce GT 635M. If these names sound familiar, it is because they were leaked in a beta driver last month. However, these "new" chips are most likely to be rebrands. 

NVIDIA is preparing to debut the GeForce 600 generation on 6th December, with mainstream mobile GeForce 600M GPUs. First in line will be GeForce 610M, GeForce GT 630M and GeForce GT 635M. If these names sound familiar, it is because they were leaked in a beta driver last month. However, these "new" chips are most likely to be rebrands. 

GeForce 610M will be the entry-level product, succeeding GeForce 410M and GeForce GT 520M. The 610M is expected to feature 48 cores with 64-bit memory. Codenamed N13M-GE1/3/5, the 610M could be based on GF119. 

One of the most popular cards in the GeForce 500M family was the GeForce GT 555M. The GT 555M, in another case of nomenclature chaos, shipped in no less than 4 different variants, ranging from 96 SP to 144 SP, GF106 to GF108, 128bit-192bit and clock speeds between 590 MHz and 753 MHz. Some of the variants of the GT 555M are set to be spinned off as GT 630M and GT 635M. Like the GT 555M, both GT 630M and GT 635M are expected to be based on the GF106 chip. 

The GT 630M, codenamed N12E-GE2, is expected to feature 144 SP with 128-bit memory, much like the variant of GT 555M present in MSI's GX780 notebooks. GT 635M might feature the same 144 SP, but with higher clocks and perhaps a 192-bit memory.

However, we are not out of the nomenclature woods yet as 610M, GT 635M and GT 630M will have multiple variants beyond the above mentioned. 

At this stage, the true nature of these first GeForce 600M SKUs remain unknown. While they seem much like Fermi rebrands, previous rumours of 28nm Fermi shrinks must also be accounted for. Regardless, 610M, GT 630M and GT 635M are most likely to be somehow based on the Fermi architecture rather than true next-gen Kepler. The first Kepler GPU, GK107, will also release under the GeForce 600M family later in 2012. 

These first GeForce 600M GPUs will be announced on 6th December, presumably shipping to OEMs. It remains to be seen when notebooks powered by GeForce 600M will hit retail shelves – most likely in early Q1 2012.