NVIDIA has added to its catalog three graphics solutions for mobile computing: GeForce GTX 680MX, GeForce GTX 675MX and GeForce GTX 670MX.
Model GTX 680MX is based on 28-nanometer GPU GK104. It has 1536 CUDA cores and runs at 720 MHz. Effective frequency of 2 GB GDDR5 is 5 GHz.
Model GTX 675MX also made from the GK104, but has 960 cores CUDA, and its clock speed is reduced to 600 MHz. GDDR5 Memory, associated with a 256-bit bus running at an effective frequency of 3.60 GHz. Memory - 2 GB.
Finally the model GTX 670MX, which is based on GK106. Like the GTX 675MX, this model has 960 cores CUDA (maximum configuration GK106), but not as wide memory bus - 192 bits. GPU and memory frequencies are 600 MHz and 2.80 GHz, respectively. Memory capacity is 2 GB.