found on "Radeon RX 470" and "Radeon RX 480"-branded graphics cards Polaris 11 (also codenamed Baffin) found on "Radeon RX 460"-branded graphics cards (also Radeon RX 560D) Polaris 12 (also codenamed Lexa) found on "Radeon RX 550" and "Radeon RX 540"-branded graphics cards Polaris 20, which is a refreshed (14 nm LPP Samsung/GloFo FinFET process) Polaris 10 with higher clocks, used for "Radeon RX 570" and "Radeon RX 580"-branded graphics cards Polaris 21, which is a refreshed (14 nm LPP Samsung/GloFo FinFET process) Polaris 11, used for "Radeon RX 560"-branded graphics cards Polaris 22, found on "Radeon RX Vega M GH" and "Radeon RX Vega M GL"-branded graphics cards (as part of Kaby Lake-G) Polaris 23, which is a refreshed (14 nm LPP Samsung/GloFo FinFET process) Polaris 12, used for "Radeon Pro WX 3200" and "Radeon RX 540X"-branded graphics cards (also Radeon RX 640) Polaris 30, which is a refreshed (12 nm LP GloFo FinFET process) Polaris 20 with higher clocks, used for "Radeon RX 590"-branded graphics cards In addition to dedicated GPUs, Polaris is utilized in the APUs of the PlayStation 4 Pro and Xbox One X, titled "Neo" and "Scorpio", respectively. Precision Performance FP64 performance of all GCN 4th generation GPUs is 1/16 of FP32 performance. Graphics Core Next 5 AMD began releasing details of their next generation of GCN Architecture, termed the 'Next-Generation Compute Unit', in January 2017. The new design was expected to increase instructions per clock, higher clock speeds, support for HBM2, a larger memory address space. The discrete graphics chipsets also include "HBCC (High Bandwidth Cache Controller)", but not when integrated into APUs. Additionally, the new chips were expected to include improvements in the Rasterisation and Render output units. The stream processors are heavily modified from the previous generations to support packed math Rapid Pack Math technology for 8-bit, 16-bit, and 32-bit numbers. With this there is a significant performance advantage when lower precision is acceptable (for example: processing two half-precision numbers at the same rate as a single single precision number). Nvidia introduced tile-based rasterization and binning with Maxwell, and this was a big reason for Maxwell's efficiency increase. In January, AnandTech assumed that Vega would finally catch up with Nvidia regarding energy efficiency optimizations due to the new "DSBR (Draw Stream Binning Rasterizer)" to be introduced with Vega. It also added support for a new shader stage – Primitive Shaders. Primitive shaders