AMD announces Radeon Pro graphics for Ultrabooks
AMD has announced the launch of the Radeon Pro 400 series for notebooks in tandem with the recent unveiling of the new MacBook Pro refresh. The mobile GPU series targets designers, photographers, and digital artists who demand graphically intensive applications. The first notebooks to sport the new AMD GPU will be the Apple MacBook Pro 15 family.
The Radeon Pro 400 series is based on the Polaris 11 design and will initially consist of the Radeon Pro 460, 455, and 450. These options are roughly comparable to the desktop RX 460 having the same 14 nm FinFET fabrication process at Global Foundries for high energy efficiency. These GPUs will be just 1.5 mm thick with a low TDP of 35 W.
The high-end Radeon Pro 460 will use all 1024 shader cores of the Polaris 11 design with 4 GB GDDR5 VRAM clocked at 2500 MHz and a 128-bit memory bus. Raw performance tops out at 1.86 TFLOPS with a bandwidth of 80 GByte/s compared to the desktop RX 460 at 2.15 TFLOPS. The RX 460 runs at a faster core clock rate than the mobile Radeon Pro 460 to make up for its lower shader count of 896.
The Radeon Pro 455 and Pro 450 top out at 768 and 640 shader cores, respectively, for a theoretical performance of 1.3 TFLOPS and 1.0 TFLOPS. Both models are expected to run at slower core clock rates than the Pro 460 and carry 2 GB of GDDR5 VRAM each at 2500 MHz.