AMD Amethyst

Amethyst

Amethyst PRO

E8950

Block Diagram

AMD's Amethyst 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. Amethyst 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: Nov 23rd, 2014

GPU Name: Amethyst

Desktop Variant: Tonga / Antigua

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: 512 KB

Max. TDP: 250 W

All GCN 3.0 GPUs

AMD GPU Architecture History

2023 CDNA 3.0
2022-2024 RDNA 3.0
2021 CDNA 2.0
2020 CDNA 1.0
2020-2023 RDNA 2.0
2019-2020 RDNA 1.0
2018-2022 GCN 5.1
2017-2020 GCN 5.0
2016-2020 GCN 4.0
2014-2019 GCN 3.0
2013-2017 GCN 2.0
2011-2020 GCN 1.0
2010-2013 TeraScale 3
2009-2015 TeraScale 2
2005-2013 TeraScale
2005-2007 Ultra-Threaded SE

Graphics cards using the AMD Amethyst GPU

Name	Chip	Memory	Shaders	TMUs	ROPs	GPU Clock	Memory Clock
AMD Radeon R9 M295X Mac Edition	Amethyst XT	4 GB	2048	128	32	850 MHz	1362 MHz
AMD Radeon R9 M295X	Amethyst XT	4 GB	2048	128	32	723 MHz	1250 MHz
AMD Radeon R9 M390X	Amethyst XT	4 GB	2048	128	32	723 MHz	1250 MHz
AMD Radeon E8950	E8950	8 GB	2048	128	32	735 MHz	1500 MHz
AMD FirePro W7170M	Amethyst XT GL	4 GB	2048	128	32	723 MHz	1250 MHz
AMD Radeon R9 M395X Mac Edition	Amethyst XT	4 GB	2048	128	32	909 MHz	1365 MHz
AMD Radeon R9 M485X	Amethyst XT	8 GB	2048	128	32	723 MHz	1250 MHz
AMD FirePro S7100X	Amethyst XT	8 GB	2048	128	32	725 MHz	1250 MHz
AMD Radeon R9 M395 Mac Edition	Amethyst PRO	2 GB	1792	112	32	834 MHz	1365 MHz
AMD Radeon R9 M395X	Amethyst XT	8 GB	2048	128	32	723 MHz	1250 MHz

Amethyst GPU Notes

Generation: Volcanic Islands
Desktop Variant: Tonga / Antigua
Graphics/Compute: GFX8 (gfx802)
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

Latest Drivers:
Windows 7:
64-bit: AMD Software: Adrenalin Edition 22.6.1

Windows 8.1:
64-bit: Radeon Software: Crimson ReLive Edition 17.4.4 / 17.7.1

Windows 10:
64-bit: AMD Software: Adrenalin Edition 22.6.1

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