AMD Polaris 20
AMD's Polaris 20 GPU uses the GCN 4.0 architecture and is made using a 14 nm production process at GlobalFoundries. With a die size of 232 mm² and a transistor count of 5,700 million it is a medium-sized chip. Polaris 20 supports DirectX 12 (Feature Level 12_0). For GPU compute applications, OpenCL version 2.1 can be used. It features 2304 shading units, 144 texture mapping units and 32 ROPs.
Further reading:
Polaris Architecture Whitepaper

Graphics Processor
- GPU Name
- Polaris 20
- Architecture
- GCN 4.0
- Foundry
- GlobalFoundries
- Process Size
- 14 nm
- Transistors
- 5,700 million
- Density
- 24.6M / mm²
- Die Size
- 232 mm²
- Released
- Apr 18th, 2017
Graphics Features
- DirectX
- 12 (12_0)
- OpenGL
- 4.6
- OpenCL
- 2.1
- Vulkan
- 1.2
- Shader Model
- 6.4
- Compute
- GFX8
- ROCm
- Yes
Render Config
- Shading Units
- 2304
- TMUs
- 144
- ROPs
- 32
- Compute Units
- 36
- ACEs
- 4
- HWSs
- 2
- SEs
- 4
- L1 Cache
- 16 KB per CU
- L2 Cache
- 2048 KB
- Max. TDP
- 185 W
All GCN 4.0 GPUs
AMD GPU Architecture History
Graphics cards using the AMD Polaris 20 GPU
Name | Chip | Memory | Shaders | TMUs | ROPs | Base Clock | Boost Clock | Memory Clock |
---|---|---|---|---|---|---|---|---|
AMD Radeon RX 580
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Polaris 20 XTX | 8 GB | 2304 | 144 | 32 | 1257 MHz | 1340 MHz | 2000 MHz |
AMD Radeon RX 570
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Polaris 20 XL | 4 GB | 2048 | 128 | 32 | 1168 MHz | 1244 MHz | 1750 MHz |
AMD Radeon Pro 575 | Polaris 20 XL | 4 GB | 2048 | 128 | 32 | 1096 MHz | 1695 MHz | |
AMD Radeon Pro 570 | Polaris 20 | 4 GB | 1792 | 112 | 32 | 1000 MHz | 1105 MHz | 1695 MHz |
AMD Radeon RX 580 Mobile
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Polaris 20M XT | 8 GB | 2304 | 144 | 32 | 1000 MHz | 1077 MHz | 2000 MHz |
AMD Radeon RX 580X
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Polaris 20 XTX | 8 GB | 2304 | 144 | 32 | 1257 MHz | 1340 MHz | 2000 MHz |
AMD Radeon RX 570X
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Polaris 20 XL | 8 GB | 2048 | 128 | 32 | 1168 MHz | 1244 MHz | 1750 MHz |
AMD Radeon RX 580X Mobile
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Polaris 20M XT | 8 GB | 2304 | 144 | 32 | 1000 MHz | 1077 MHz | 2000 MHz |
AMD Radeon RX 580 2048SP
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Polaris 20 XL | 4 GB | 2048 | 128 | 32 | 1168 MHz | 1284 MHz | 1750 MHz |
AMD Radeon RX 580G
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Polaris 20 XTX | 8 GB | 2304 | 144 | 32 | 1257 MHz | 1330 MHz | 2000 MHz |
AMD Radeon Pro 570X | Polaris 20 | 4 GB | 1792 | 112 | 32 | 1000 MHz | 1105 MHz | 1700 MHz |
AMD Radeon Pro 575X | Polaris 20 XL | 4 GB | 2048 | 128 | 32 | 1096 MHz | 1700 MHz | |
AMD Radeon RX 590 GME
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Polaris 20 XTR | 8 GB | 2304 | 144 | 32 | 1257 MHz | 1380 MHz | 2000 MHz |
Polaris 20 GPU Notes
Architecture Codename: Arctic Islands Codename: Ellesmere CLRX Version: GCN 1.2 Graphics/Compute: GFX8 (gfx803) Display Core Engine: 11.2 Unified Video Decoder: 6.3 Video Compression Engine: 3.4 |