AMD disclosed the first details of its upcoming Radeon R9 285 graphics card, designed to compete with NVIDIA's GeForce GTX 760. Based on the 28 nm "Tonga" silicon, the card features 1,792 of the chip's 2,048 Graphics Core Next 1.1 stream processors, 112 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface. AMD AIBs will have variants with 2 GB and 4 GB of memory. The company didn't disclose clock speeds, but the card will be designed to offer performance rivaling (or outperforming) the R9 280, at energy-efficiency levels rivaling NVIDIA's GK104 silicon. Below are some of the first custom-design graphics cards.