The FirePro M3100 was a professional mobile graphics chip by AMD. Built on the 28 nm process, and based on the Mars graphics processor, in its Mars M2 LP variant, the chip supports DirectX 12. The Mars graphics processor is a relatively small chip with a die area of only 77 mm² and 950 million transistors. It features 384 shading units, 24 texture mapping units, and 8 ROPs. AMD has paired 1,024 MB DDR3 memory with the FirePro M3100, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 650 MHz, which can be boosted up to 700 MHz, memory is running at 1000 MHz. Its power draw is not exactly known. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. FirePro M3100 is connected to the rest of the system using a PCI-Express 3.0 x8 interface.