gfxCardStatus supportar tyvärr inte den senaste MBP 13":
The following dual-GPU models are supported:
* 2010 i5/i7 MacBook Pros with Intel HD/NVIDIA GeForce GT 330M GPUs
* 2009 MacBook Pros with NVIDIA GeForce 9400M/9600M GT GPUs
* Late 2008 MacBook Pros with NVIDIA GeForce 9400M/9600M GT GPUs