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AMD Polaris 21

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Polaris 21
Polaris 21 XT
Polaris 21 XT
Die Shot
Fritzchens Fritz
Die Shot
Block Diagram
Block Diagram
AMD's Polaris 21 GPU uses the GCN 4.0 architecture and is made using a 14 nm production process at GlobalFoundries. With a die size of 123 mm² and a transistor count of 3,000 million it is a small chip. Polaris 21 supports DirectX 12 (Feature Level 12_0). For GPU compute applications, OpenCL version 2.1 can be used. It features 1024 shading units, 64 texture mapping units and 16 ROPs.
Further reading: Polaris Architecture Whitepaper

Graphics Processor

Released
Apr 18th, 2017
GPU Name
Polaris 21
Codename
Baffin
Generation
Arctic Islands/Polaris
Architecture
GCN 4.0
Foundry
GlobalFoundries
Process Size
14 nm
Transistors
3,000 million
Density
24.4M / mm²
Die Size
123 mm²
Package
BGA-769

Graphics Features

DirectX
12 (12_0)
OpenGL
4.6
OpenCL
2.1
Vulkan
1.3
Shader Model
6.7
WDDM
3.1
Compute
GFX8 (gfx803)
DCE
11.2
UVD
6.3
VCE
3.4
SDMA
3.0.0
CLRX
GCN 1.2.0

Render Config

Shading Units
1024
TMUs
64
ROPs
16
Compute Units
16
ACEs
4
HWSs
2
SEs
2
L1 Cache
16 KB per CU
L2 Cache
1024 KB
Max. TDP
75 W

All GCN 4.0 GPUs

AMD GPU Architecture History

Graphics cards using the AMD Polaris 21 GPU

Name Chip Memory Shaders TMUs ROPs Base Clock Boost Clock Memory Clock
AMD Radeon RX 560
Polaris 21 XT 4 GB 1024 64 16 1175 MHz 1275 MHz 1750 MHz
AMD Radeon Pro 560
Polaris 21 XT 4 GB 1024 64 16 907 MHz 1270 MHz
AMD Radeon Pro 555
Polaris 21 PRO 2 GB 768 48 16 850 MHz 1275 MHz
AMD Radeon RX 560D
Polaris 21 XL 4 GB 896 56 16 1090 MHz 1175 MHz 1500 MHz
AMD Radeon RX 560 896SP
Polaris 21 XL 4 GB 896 56 16 1090 MHz 1175 MHz 1750 MHz
AMD Radeon RX 560X
Polaris 21 XT 4 GB 1024 64 16 1175 MHz 1275 MHz 1750 MHz
AMD Radeon RX 560X Mobile
Polaris 21M XT 2 GB 1024 64 16 1175 MHz 1202 MHz 1500 MHz
AMD Radeon RX 560DX
Polaris 21 XL 4 GB 896 56 16 1090 MHz 1175 MHz 1500 MHz
AMD Radeon Pro 560X
Polaris 21 XT 4 GB 1024 64 16 1004 MHz 1470 MHz
AMD Radeon Pro 555X
Polaris 21 PRO 4 GB 768 48 16 907 MHz 1470 MHz
AMD Radeon RX 560X Mobile
Polaris 21M XT 4 GB 1024 64 16 1275 MHz 1450 MHz
AMD Radeon RX 560X Mobile
Polaris 21M XT 4 GB 1024 64 16 1275 MHz 1750 MHz

Polaris 21 GPU Notes

Generation: Polaris
Codename: Baffin
Graphics/Compute: GFX8 (gfx803)
Display Core Engine: 11.2
Unified Video Decoder: 6.3
Video Compression Engine: 3.4
System DMA: 3.0.0
CLRX: GCN 1.2.0
Apr 16th, 2024 10:23 EDT change timezone

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