AMD Polaris 23
AMD's Polaris 23 GPU uses the GCN 4.0 architecture and is made using a 14 nm production process at GlobalFoundries. With a die size of 103 mm² and a transistor count of 2,200 million it is a small chip. Polaris 23 supports DirectX 12 (Feature Level 12_0). For GPU compute applications, OpenCL version 2.1 can be used. It features 640 shading units, 40 texture mapping units and 16 ROPs.
Further reading:
Polaris Architecture Whitepaper

Graphics Processor
- GPU Name
- Polaris 23
- Architecture
- GCN 4.0
- Foundry
- GlobalFoundries
- Process Size
- 14 nm
- Transistors
- 2,200 million
- Density
- 21.4M / mm²
- Die Size
- 103 mm²
- Released
- Apr 11th, 2018
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
- 640
- TMUs
- 40
- ROPs
- 16
- Compute Units
- 10
- ACEs
- 4
- HWSs
- 2
- SEs
- 2
- L1 Cache
- 16 KB per CU
- L2 Cache
- 512 KB
- Max. TDP
- 65 W
All GCN 4.0 GPUs
AMD GPU Architecture History
Graphics cards using the AMD Polaris 23 GPU
Name | Chip | Memory | Shaders | TMUs | ROPs | Base Clock | Boost Clock | Memory Clock |
---|---|---|---|---|---|---|---|---|
AMD Radeon RX 540X Mobile | Polaris 23 MXL | 2 GB | 512 | 32 | 16 | 1124 MHz | 1211 MHz | 1500 MHz |
AMD Radeon RX 550X Mobile | Polaris 23 MXT | 2 GB | 640 | 40 | 16 | 1100 MHz | 1176 MHz | 1500 MHz |
AMD Radeon 550X Mobile | Polaris 23 MXT | 4 GB | 640 | 40 | 16 | 1100 MHz | 1287 MHz | 1500 MHz |
AMD Radeon Pro WX 3200
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Polaris 23 XT GL | 4 GB | 640 | 32 | 16 | 1295 MHz | 1500 MHz | |
AMD Radeon RX 640 Mobile | Polaris 23 XT | 2 GB | 640 | 40 | 16 | 1082 MHz | 1218 MHz | 1500 MHz |
AMD Radeon 630 Mobile | Polaris 23 MXL | 2 GB | 512 | 32 | 16 | 1082 MHz | 1211 MHz | 1500 MHz |
AMD Radeon Pro WX 3200 Mobile | Polaris 23 XT GLM | 4 GB | 640 | 32 | 16 | 1082 MHz | 1000 MHz |
Polaris 23 GPU Notes
Architecture Codename: Arctic Islands Codename: Polaris 12 (Treasure) CLRX Version: GCN 1.2 Graphics/Compute: GFX8 (gfx804) Display Core Engine: 11.2 Unified Video Decoder: 6.3 Video Compression Engine: 3.4 |