The second-generation High Bandwidth Memory offers a number of bonuses over GDDR5 memory, with more memory bandwidth per chip and lower power consumption offered by HBM2.
It is claimed opting for the Vega 16 and Vega 20 will offer a 60-percent performance improvement over the Radeon Pro 560X, making it useful for mobile creative professionals working in video editing, 3D design, and graphics-heavy workflows. The GPU also includes a feature called Rapid Packed Math, that accelerates processing of workloads in realtime and can cut down the resources required for repetitive tasks. The Vega 16 and Vega 20 are equipped with what AMD describes as "Vega next-generation compute units," with each having 16 and 20 compute units respectively. Under the new options, users can elect for a Vega 16 or Vega 20, both with 4GB of HBM2 memory. Previously, buyers of the 15-inch MacBook Pro had the option of a Radeon Pro 555X or Radeon Pro 560X GPU, each with 4GB of GDDR5 memory, to be installed in the notebook. Under the change, customers can elect to have a Vega 16 or Vega 20 graphics processing unit (GPU) as a discrete graphics alternative to the integrated Intel UHD Graphics 630. Quietly revealed during Apple's special event in October alongside other Mac and iPad changes, the upgraded options to add more powerful graphics to the MacBook Pro went live on Wednesday.
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