The day before Apple introduced the new MacBook Pro models laptops, 15-inch versions that got the line graphics cards AMD Radeon Pro 400 based Polaris architecture. Curiously, the press release from the “red” chip maker, revealing the technical characteristics of new graphics cards, was published shortly after Cupertino presentation.
The new line of graphics cards in three models: Radeon Pro 450, the Pro 455 and Pro 460. All three new products are based on an unnamed GPU, which is a close relative of the crystal Polaris 11. By the way, the latter it differs twice reduced thickness of silicon layers . Furthermore, Radeon Pro 460 has a stream processor 1024, which is 128 higher than the usual configuration of a video card 11 Polaris Radeon RX 460. The number of processors in the models 455 and Pro 450 Pro 768 and 640 is equal, respectively.
The graphics accelerators Radeon Pro 450 and Pro 455 are equipped with two gigabytes of graphics memory, and the top model is equipped with four GB. Memory bandwidth in all cases equal to 80 GB / s. The level of “raw” performance innovations of 1, 1.3 and 1.86 teraflops, respectively.