The main ideas when designing Polaris 10 GPU were energy efficiency, DirectX 12 and Volcano optimization and support for the latest video standards. Radeon RX 480 has a total of 36 processing units (Compute Unit), which encompasses 2,304 Stream processors. Also, this new GPU has 144 texture units, 32 ROPs and 2MB L2 cache. It is connected with GDDR5 memory at 8 GB / s via 256bit highway, which provides up to 256 GB / s.

New Polaris 10 GPU delivers a host of new technologies and architectural improvements that are near the operating frequency of over 1200 MHz, contributed to the level of performance that can be seen in the results of our testing. The Polaris 10 is something that AMD calls “Primitive Discard Accelerator” or abbreviated PDA. Implementation of this technology significantly improves performance in dealing with geometry, resulting in significantly improved performance in the field of tessellation and multi-sampling antialiasing. There is also the so-called implementation. “Index cache,” which again dosnosi acceleration in working with geometry and increases effective memory bandwidth over physically available, that provides 256bit bus. For efficient operation of the memory is also responsible greater amount of L2 cache – a total of 2 MB, as well as completely new algorithm for compression. When everything is taken into account, it’s no wonder
AMD Radeon RX 480 with its 256bit bus, achieves performance of a Radeon R9 290 which has a 512bit bus.