The GeForce 845M was a mobile graphics chip by NVIDIA, launched on February 7th, 2015. Built on the 28 nm process, and based on the GM107 graphics processor, in its N15S-GT1R-KA-A2 variant, the chip supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_0, which can be problematic with newer DirectX 12 titles. The GM107 graphics processor is an average sized chip with a die area of 148 mm² and 1,870 million transistors. Unlike the fully unlocked GeForce GTX 750 Ti, which uses the same GPU but has all 640 shaders enabled, NVIDIA has disabled some shading units on the GeForce 845M to reach the product's target shader count. It features 512 shading units, 32 texture mapping units, and 16 ROPs. NVIDIA has paired 2,048 MB DDR3 memory with the GeForce 845M, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 863 MHz, which can be boosted up to 863 MHz, memory is running at 1001 MHz. Its power draw is rated at 45 W maximum. 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. GeForce 845M is connected to the rest of the system using a PCI-Express 3.0 x16 interface.