NVIDIA is readying a high-performance mobile GPU for a Computex 2012 unveiling. Called the GeForce GTX 680M, the chip is based on its trusty 28 nm GK104 silicon, but with about half its streaming multiprocessors disabled, resulting in a CUDA core count of around 768. Reference MXM boards of the chip could ship with memory options as high as 4 GB, across a 256-bit wide memory interface. With the right craftsmanship on the part of NVIDIA, the GTX 680M could end up with a power draw of 100W. A Chinese source had the opportunity to picture the reference board qualification sample, and put it through 3DMark 11, in which it was found to be roughly 37% faster than the GF114-based GeForce GTX 670M, scoring 4905 points in Performance preset. The test bed was driven by Intel Core i7-3720QM quad-core mobile processor.