Radeon 400 series

Radeon 400 series
Release date	June 29, 2016
Codename	Polaris;
Architecture	GCN 1st gen; GCN 2nd gen; GCN 4th gen
Transistors	950M (Olan) 28 nm; 1.500M (Cape Verde) 28 nm; 2.080M (Bonaire) 28 nm; 3.000M (Baffin) 14 nm; 5.700M (Ellesmere) 14 nm;
Fabrication process	Samsung/GloFo 14 nm (FinFET); Some in 28 nm (CMOS)
Cards
Entry-level	Radeon R5 420; Radeon R5 430; Radeon R5 435; Radeon R7 430; Radeon R7 435
Mid-range	Radeon R7 450; Radeon RX 455; Radeon RX 460; Radeon RX 470D; Radeon RX 470
High-end	Radeon RX 480
API support
Direct3D	Direct3D 12.0 (feature level 12_0) ; Shader Model 6.7 (GCN 4th gen) or Shader Model 6.5;
OpenCL	OpenCL 2.1
OpenGL	OpenGL 4.6
Vulkan	Vulkan 1.2 (GCN 1st gen and GCN 2nd gen for Windows); Vulkan 1.3 (GCN 4th gen for Windows, GCN 1st gen or newer for Linux); SPIR-V
History
Predecessor	Radeon 300 series
Successor	Radeon 500 series
Support status
	Unsupported

The Radeon 400 series is a series of graphics processors (GPUs) developed by AMD. It introduced two new GPU chips, codenamed the Polaris 10 and 11, based on the GCN 4 microarchitecture, and manufactured with GlobalFoundries' 14 nm process; it also includes several rebranded, older products.