New Apple iMac Pro & MacBook Pro Use Radeon Pro 500-Series Graphic Chips
It was not just with processors that Apple upgraded the specs of the new iMac Pro and MacBook Pro introduced on Monday at the WWDC 2017. The new computers also got improvements in the graphics cards used which belong to the AMD Radeon Pro 500-series.
Tech Report notes that while most of the MacBook Pro computers came with Intel IGPs, the higher-end 15-inch models came with either the AMD Radeon Pro 555 or Radeon Pro 560 graphic chips. The two are based off the Polaris 21 chip inside the desktop Radeon HD 560. The chip features 1024 stream processors at a 1275 MHz boost clock.
On one hand, with 78 SPS packed into 12 compute units, the Radeon Pro 555 packs 1.3 TFLOPS of peak compute power, resulting in a boost clock of 850 MHz. On the other hand, Radeon Pro 560, which is bigger, has 1024 SPs in an array of 16 CUs. It has a total of 1.9 TFLOPS with a boost clock estimated at 925 MHz.
With 81 GB/s of memory bandwidth, the two graphic options work out to 5 GT/s of GDDR5 memory on a 128-bit-wide memory bus. The Radeon Pro 560 has 4 GB memory, while the Radeon Pro 55 has 2 GB memory. For the updated iMacs, three new AMD graphic chip options are available. These are the Radeon Pro 570, Radeon Pro 575, and Radeon Pro 580.
Tech Gage reports that the Radeon Pro 570 has 3.6 TFLOPs, 1792 cores, and 8192 MB memory. The Radeon Pro 575 has 4.5 TFLOPS, 2048 cores and also 8192 MB memory, while the Pro 580 comes with 5.5 TFLOPs, and 2304 cores.
The tech website notes that outside of the fact that the Radeon Pro lineup is not too interesting, it is available in the new iMacs. However, what will be interesting is when Vega hits the iMac Pro in the later part of 2017. Tech experts note that the Radeon Pro WX is impressive which make them salivate at the thought of what the Vega-based RPros will bring to the table.