According to earlier rumors , Greenland hybrid graphics system processor cores with the architecture of Zen will be connected to high-speed bus cores AMD Coherent Fabric. It is necessary for the implementation of joint (heterogeneous) computing to a new performance level . The graphics processor will process the data at a rate of over 4 teraflops, because in his memory subsystem will be a new type of memory - HBM, the speed of which will increase to 500 GB / s.
Integrated graphics core will have a capacity of Coherent Fabric interface to communicate with the cores at 100 GB / s. Additionally it is eliminated delays inherent in the bus PCI Express (approximately 500 nanoseconds). Bus PCI Express version 3.0 on 16 lines promises speed of 15 GB / s - about 7 times slower than 4 lines of Global Memory Interconnect (Coherent Fabric or Coherent data fabric). Related Products :
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