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AMD Tonga

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Tonga
Tonga XT
Tonga XT
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 2.1 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

Released
Aug 12th, 2014
GPU Name
Tonga
Desktop Variant
Antigua
Mobile Variant
Amethyst
Generation
Volcanic Islands
Architecture
GCN 3.0
Foundry
TSMC
Process Size
28 nm
Transistors
5,000 million
Density
13.7M / mm²
Die Size
366 mm²

Graphics Features

DirectX
12 (12_0)
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2.170
Shader Model
6.5
WDDM
2.7
Compute
GFX8 (gfx802)
DCE
10.0
UVD
5.0
VCE
3.0
SDMA
3.0.0
CLRX
GCN 1.2.0

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
Cloudy Tau 8 GB 1792 112 32 920 MHz 1250 MHz
AMD Radeon R9 285X
Tonga XT 3 GB 2048 128 32 1002 MHz 1375 MHz

Tonga GPU Notes

Generation: Volcanic Islands
Desktop Variant: Antigua
Mobile Variant: Amethyst
Graphics/Compute: GFX8 (gfx802 / gfx805)
Display Core Engine: 10.0
Unified Video Decoder: 5.0
Video Compression Engine: 3.0
System DMA: 3.0.0
CLRX: GCN 1.2.0
May 5th, 2024 04:53 EDT change timezone

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