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AMD Tonga

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Tonga
Block Diagram
Block Diagram
AMD's Tonga GPU uses the GCN 3.0 architecture and is made using a 28 nm production process at TSMC. With a die size of 366 mm² and a transistor count of 5,000 million it is a large chip. Tonga supports DirectX 12 (Feature Level 12_0). For GPU compute applications, OpenCL version 2.0 can be used. It features 2048 shading units, 128 texture mapping units and 32 ROPs.
Further reading: GCN 3.0 Instruction Set Architecture

Graphics Processor

GPU Name
Tonga
Architecture
GCN 3.0
Foundry
TSMC
Process Size
28 nm
Transistors
5,000 million
Density
13.7M / mm²
Die Size
366 mm²
Released
Aug 12th, 2014

Graphics Features

DirectX
12 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2
Shader Model
6.3
Compute
GFX8
ROCm
Yes

Render Config

Shading Units
2048
TMUs
128
ROPs
32
Compute Units
32
Z-Stencil
128
ACEs
8
GEs
4
L1 Cache
16 KB per CU
L2 Cache
768 KB
Max. TDP
265 W

All GCN 3.0 GPUs

AMD GPU Architecture History

Graphics cards using the AMD Tonga GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
AMD Radeon R9 285 Tonga PRO 2 GB 1792 112 32 918 MHz 1375 MHz
AMD FirePro W7100 Tonga PRO GL 8 GB 1792 112 32 920 MHz 1250 MHz
AMD FirePro S7150 Tonga XT GL 8 GB 2048 128 32 920 MHz 1250 MHz
AMD FirePro S7150 x2 Tonga PRO GL 8 GB 1792 112 32 1050 MHz 1250 MHz
AMD Radeon R9 285X Tonga XT 3 GB 2048 128 32 1002 MHz 1375 MHz

Tonga GPU Notes

Architecture Codename: Volcanic Islands
CLRX Version: GCN 1.2
Graphics/Compute: GFX8 (gfx802)
Display Core Engine: 10.0
Unified Video Decoder: 5.0
Video Compression Engine: 3.0