Radeon 400 series

Radeon 400 series
Release date	29 June 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; Radeon R7 450; Radeon RX 455; Radeon RX 460
Mid-range	Radeon RX 470D; Radeon RX 470; Radeon RX 480
API support
DirectX	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 4.5 (4.6 Windows 7+ and Adrenalin 18.4.1+)
Vulkan	Vulkan 1.3 (GCN 4th gen) or Vulkan 1.2; SPIR-V
History
Predecessor	Radeon 300 series
Successor	Radeon 500 series
Support status
	GCN 4 cards supported

The Radeon 400 series is a series of graphics processors developed by AMD. These cards were the first to feature the Polaris GPUs, using the new 14 nm FinFET manufacturing process, developed by Samsung Electronics and licensed to GlobalFoundries. The Polaris family initially included two new chips in the Graphics Core Next (GCN) family (Polaris 11 and Polaris 12). Polaris implements the 4th generation of the Graphics Core Next instruction set, and shares commonalities with the previous GCN microarchitectures.

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